diff --git a/.github/workflows/CD.yaml b/.github/workflows/CD.yaml
index c80da871..4e467787 100644
--- a/.github/workflows/CD.yaml
+++ b/.github/workflows/CD.yaml
@@ -66,7 +66,7 @@ jobs:
           targets: ${{ matrix.target }}
       - name: Install cross
         if: ${{ matrix.use-cross }}
-        uses: taiki-e/install-action@v2.42.16
+        uses: taiki-e/install-action@v2.44.6
         with:
           tool: cross
       - name: Cache build artifacts
diff --git a/.github/workflows/mirror.yaml b/.github/workflows/mirror.yaml
new file mode 100644
index 00000000..d30d954d
--- /dev/null
+++ b/.github/workflows/mirror.yaml
@@ -0,0 +1,47 @@
+# SPDX-FileCopyrightText: 2024 Shun Sakai
+#
+# SPDX-License-Identifier: Apache-2.0 OR MIT
+
+name: Mirror to mirror repositories
+
+on:
+  push:
+    branches:
+      - "develop"
+      - "master"
+  workflow_dispatch:
+
+jobs:
+  gitlab:
+    name: Mirror to GitLab
+    if: github.actor == 'sorairolake' && github.repository_owner == 'sorairolake'
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Mirror to GitLab
+        uses: yesolutions/mirror-action@v0.7.0
+        with:
+          REMOTE: "https://gitlab.com/sorairolake/qrtool.git"
+          GIT_USERNAME: ${{ github.actor }}
+          GIT_PASSWORD: ${{ secrets.GITLAB_TOKEN }}
+          PUSH_ALL_REFS: "false"
+
+  codeberg:
+    name: Mirror to Codeberg
+    if: github.actor == 'sorairolake' && github.repository_owner == 'sorairolake'
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Mirror to Codeberg
+        uses: yesolutions/mirror-action@v0.7.0
+        with:
+          REMOTE: "https://codeberg.org/sorairolake/qrtool.git"
+          GIT_USERNAME: ${{ github.actor }}
+          GIT_PASSWORD: ${{ secrets.CODEBERG_TOKEN }}
+          PUSH_ALL_REFS: "false"
diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index bffca899..11f95e55 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -14,6 +14,12 @@ All notable changes to this project will be documented in this file.
 The format is based on https://keepachangelog.com/[Keep a Changelog], and this
 project adheres to https://semver.org/[Semantic Versioning].
 
+== {compare-url}/v0.11.4\...v0.11.5[0.11.5] - 2024-09-22
+
+=== Added
+
+* Supports `oklab()` and `oklch()` for `--foreground` and `--background`
+
 == {compare-url}/v0.11.3\...v0.11.4[0.11.4] - 2024-08-04
 
 === Changed
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index 455a8857..fc8acf5e 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -1,7 +1,9 @@
 <!--
+SPDX-FileCopyrightText: 2014 Coraline Ada Ehmke
+SPDX-FileCopyrightText: 2021 Organization for Ethical Source
 SPDX-FileCopyrightText: 2023 Shun Sakai
 
-SPDX-License-Identifier: Apache-2.0 OR MIT
+SPDX-License-Identifier: CC-BY-4.0
 -->
 
 # Contributor Covenant Code of Conduct
@@ -23,23 +25,23 @@ diverse, inclusive, and healthy community.
 Examples of behavior that contributes to a positive environment for our
 community include:
 
-* Demonstrating empathy and kindness toward other people
-* Being respectful of differing opinions, viewpoints, and experiences
-* Giving and gracefully accepting constructive feedback
-* Accepting responsibility and apologizing to those affected by our mistakes,
+- Demonstrating empathy and kindness toward other people
+- Being respectful of differing opinions, viewpoints, and experiences
+- Giving and gracefully accepting constructive feedback
+- Accepting responsibility and apologizing to those affected by our mistakes,
   and learning from the experience
-* Focusing on what is best not just for us as individuals, but for the overall
+- Focusing on what is best not just for us as individuals, but for the overall
   community
 
 Examples of unacceptable behavior include:
 
-* The use of sexualized language or imagery, and sexual attention or advances of
-  any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or email address,
+- The use of sexualized language or imagery, and sexual attention or advances
+  of any kind
+- Trolling, insulting or derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or email address,
   without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
+- Other conduct which could reasonably be considered inappropriate in a
   professional setting
 
 ## Enforcement Responsibilities
@@ -51,23 +53,23 @@ or harmful.
 
 Community leaders have the right and responsibility to remove, edit, or reject
 comments, commits, code, wiki edits, issues, and other contributions that are
-not aligned to this Code of Conduct, and will communicate reasons for moderation
-decisions when appropriate.
+not aligned to this Code of Conduct, and will communicate reasons for
+moderation decisions when appropriate.
 
 ## Scope
 
 This Code of Conduct applies within all community spaces, and also applies when
 an individual is officially representing the community in public spaces.
-Examples of representing our community include using an official e-mail address,
-posting via an official social media account, or acting as an appointed
-representative at an online or offline event.
+Examples of representing our community include using an official e-mail
+address, posting via an official social media account, or acting as an
+appointed representative at an online or offline event.
 
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
 reported to the community leaders responsible for enforcement at
-<sorairolake@protonmail.ch>.
-All complaints will be reviewed and investigated promptly and fairly.
+<sorairolake@protonmail.ch>. All complaints will be reviewed and investigated
+promptly and fairly.
 
 All community leaders are obligated to respect the privacy and security of the
 reporter of any incident.
@@ -120,19 +122,16 @@ community.
 
 ## Attribution
 
-This Code of Conduct is adapted from the [Contributor Covenant][homepage],
-version 2.1, available at
-[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
+This Code of Conduct is adapted from the [Contributor Covenant], version 2.1,
+available at
+<https://www.contributor-covenant.org/version/2/1/code_of_conduct.html>.
 
 Community Impact Guidelines were inspired by
-[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
+[Mozilla's code of conduct enforcement ladder].
 
 For answers to common questions about this code of conduct, see the FAQ at
-[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
-[https://www.contributor-covenant.org/translations][translations].
-
-[homepage]: https://www.contributor-covenant.org
-[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
-[Mozilla CoC]: https://github.com/mozilla/diversity
-[FAQ]: https://www.contributor-covenant.org/faq
-[translations]: https://www.contributor-covenant.org/translations
+<https://www.contributor-covenant.org/faq>. Translations are available at
+<https://www.contributor-covenant.org/translations>.
+
+[Contributor Covenant]: https://www.contributor-covenant.org
+[Mozilla's code of conduct enforcement ladder]: https://github.com/mozilla/diversity
diff --git a/Cargo.lock b/Cargo.lock
index 0a84ec48..65ccbb6f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,6 +8,12 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
+[[package]]
+name = "adler2"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
+
 [[package]]
 name = "ahash"
 version = "0.8.11"
@@ -105,31 +111,32 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.86"
+version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b3d1d046238990b9cf5bcde22a3fb3584ee5cf65fb2765f454ed428c7a0063da"
+checksum = "86fdf8605db99b54d3cd748a44c6d04df638eb5dafb219b135d0149bd0db01f6"
 
 [[package]]
 name = "arrayref"
-version = "0.3.8"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d151e35f61089500b617991b791fc8bfd237ae50cd5950803758a179b41e67a"
+checksum = "76a2e8124351fda1ef8aaaa3bbd7ebbcb486bbcd4225aca0aa0d84bb2db8fecb"
 
 [[package]]
 name = "arrayvec"
-version = "0.7.4"
+version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
+checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"
 
 [[package]]
 name = "assert_cmd"
-version = "2.0.15"
+version = "2.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc65048dd435533bb1baf2ed9956b9a278fbfdcf90301b39ee117f06c0199d37"
+checksum = "dc1835b7f27878de8525dc71410b5a31cdcc5f230aed5ba5df968e09c201b23d"
 dependencies = [
  "anstyle",
  "bstr",
  "doc-comment",
+ "libc",
  "predicates",
  "predicates-core",
  "predicates-tree",
@@ -197,9 +204,9 @@ checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
 
 [[package]]
 name = "bytemuck"
-version = "1.16.3"
+version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "102087e286b4677862ea56cf8fc58bb2cdfa8725c40ffb80fe3a008eb7f2fc83"
+checksum = "94bbb0ad554ad961ddc5da507a12a29b14e4ae5bda06b19f575a3e6079d2e2ae"
 
 [[package]]
 name = "byteorder-lite"
@@ -209,9 +216,12 @@ checksum = "8f1fe948ff07f4bd06c30984e69f5b4899c516a3ef74f34df92a2df2ab535495"
 
 [[package]]
 name = "cc"
-version = "1.1.7"
+version = "1.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26a5c3fd7bfa1ce3897a3a3501d362b2d87b7f2583ebcb4a949ec25911025cbc"
+checksum = "07b1695e2c7e8fc85310cde85aeaab7e3097f593c91d209d3f9df76c928100f0"
+dependencies = [
+ "shlex",
+]
 
 [[package]]
 name = "cfg-if"
@@ -221,9 +231,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "4.5.13"
+version = "4.5.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fbb260a053428790f3de475e304ff84cdbc4face759ea7a3e64c1edd938a7fc"
+checksum = "b0956a43b323ac1afaffc053ed5c4b7c1f1800bacd1683c353aabbb752515dd3"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -231,9 +241,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.13"
+version = "4.5.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64b17d7ea74e9f833c7dbf2cbe4fb12ff26783eda4782a8975b72f895c9b4d99"
+checksum = "4d72166dd41634086d5803a47eb71ae740e61d84709c36f3c34110173db3961b"
 dependencies = [
  "anstream",
  "anstyle",
@@ -244,9 +254,9 @@ dependencies = [
 
 [[package]]
 name = "clap_complete"
-version = "4.5.12"
+version = "4.5.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8670053e87c316345e384ca1f3eba3006fc6355ed8b8a1140d104e109e3df34"
+checksum = "8937760c3f4c60871870b8c3ee5f9b30771f792a7045c48bcbba999d7d6b3b8e"
 dependencies = [
  "clap",
 ]
@@ -263,14 +273,14 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.5.13"
+version = "4.5.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "501d359d5f3dcaf6ecdeee48833ae73ec6e42723a1e52419c79abf9507eec0a0"
+checksum = "4ac6a0c7b1a9e9a5186361f67dfa1b88213572f427fb9ab038efb2bd8c582dab"
 dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.72",
+ "syn",
 ]
 
 [[package]]
@@ -352,9 +362,9 @@ checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
 [[package]]
 name = "csscolorparser"
-version = "0.6.2"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb2a7d3066da2de787b7f032c736763eb7ae5d355f81a68bab2675a96008b0bf"
+checksum = "46f9a16a848a7fb95dd47ce387ac1ee9a6df879ba784b815537fcd388a1a8288"
 dependencies = [
  "phf",
 ]
@@ -409,7 +419,7 @@ dependencies = [
  "flume",
  "half",
  "lebe",
- "miniz_oxide",
+ "miniz_oxide 0.7.4",
  "rayon-core",
  "smallvec",
  "zune-inflate",
@@ -426,12 +436,12 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.31"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f211bbe8e69bbd0cfdea405084f128ae8b4aaa6b0b522fc8f2b009084797920"
+checksum = "324a1be68054ef05ad64b861cc9eaf1d623d2d8cb25b4bf2cb9cdd902b4bf253"
 dependencies = [
  "crc32fast",
- "miniz_oxide",
+ "miniz_oxide 0.8.0",
 ]
 
 [[package]]
@@ -460,21 +470,21 @@ checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
 
 [[package]]
 name = "g2gen"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc2c7625b2fc250dd90b63f7887a6bb0f7ec1d714c8278415bea2669ef20820e"
+checksum = "dc3e32f911a41e073b8492473c3595a043e1369ab319a2dbf8c89b1fea06457c"
 dependencies = [
  "g2poly",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn",
 ]
 
 [[package]]
 name = "g2p"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc36d9bdc3d2da057775a9f4fa7d7b09edab3e0eda7a92cc353358fa63b8519e"
+checksum = "1a9afa6efed9af3a5a68ba066429c1497c299d4eafbd948fe630df47a8f2d29f"
 dependencies = [
  "g2gen",
  "g2poly",
@@ -482,9 +492,9 @@ dependencies = [
 
 [[package]]
 name = "g2poly"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af6a86e750338603ea2c14b1c0bfe58cd61f87ca67a0021d9334996024608e12"
+checksum = "0fd8b261ccf00df8c5cc60c082bb7d7aa64c33a433cfcc091ca244326c924b2c"
 
 [[package]]
 name = "gif"
@@ -555,15 +565,15 @@ dependencies = [
 
 [[package]]
 name = "imagesize"
-version = "0.12.0"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "029d73f573d8e8d63e6d5020011d3255b28c3ba85d6cf870a07184ed23de9284"
+checksum = "edcd27d72f2f071c64249075f42e205ff93c9a4c5f6c6da53e79ed9f9832c285"
 
 [[package]]
 name = "indexmap"
-version = "2.3.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de3fc2e30ba82dd1b3911c8de1ffc143c74a914a14e99514d7637e3099df5ea0"
+checksum = "68b900aa2f7301e21c36462b170ee99994de34dff39a4a6a528e80e7376d07e5"
 dependencies = [
  "equivalent",
  "hashbrown",
@@ -572,9 +582,9 @@ dependencies = [
 
 [[package]]
 name = "is-svg"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57672fed95854c46fe7e0c241a325c5d86c4704a746329f888713046c6204705"
+checksum = "8e7d694e2d1d2ac8a6566d31fb0806f9e7f67d9f8adb3f188464a7b2f92ab2c0"
 dependencies = [
  "usvg",
 ]
@@ -593,9 +603,9 @@ checksum = "f5d4a7da358eff58addd2877a45865158f0d78c911d43a5784ceb7bbf52833b0"
 
 [[package]]
 name = "kurbo"
-version = "0.11.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e5aa9f0f96a938266bdb12928a67169e8d22c6a786fda8ed984b85e6ba93c3c"
+checksum = "89234b2cc610a7dd927ebde6b41dd1a5d4214cffaef4cf1fb2195d592f92518f"
 dependencies = [
  "arrayvec",
  "smallvec",
@@ -609,24 +619,24 @@ checksum = "03087c2bad5e1034e8cace5926dec053fb3790248370865f5117a7d0213354c8"
 
 [[package]]
 name = "libc"
-version = "0.2.155"
+version = "0.2.158"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
+checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
 
 [[package]]
 name = "libdeflate-sys"
-version = "1.20.0"
+version = "1.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "669ea17f9257bcb48c09c7ee4bef3957777504acffac557263e20c11001977bc"
+checksum = "7b14a6afa4e2e1d343fd793a1c0a7e5857a73a2697c2ff2c98ac00d6c4ecc820"
 dependencies = [
  "cc",
 ]
 
 [[package]]
 name = "libdeflater"
-version = "1.20.0"
+version = "1.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dfd6424f7010ee0a3416f1d796d0450e3ad3ac237a237644f728277c4ded016"
+checksum = "a17fe2badabdaf756f620748311e99ef99a5fdd681562dfd343fdb16ed7d4797"
 dependencies = [
  "libdeflate-sys",
 ]
@@ -684,6 +694,15 @@ dependencies = [
  "simd-adler32",
 ]
 
+[[package]]
+name = "miniz_oxide"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2d80299ef12ff69b16a84bb182e3b9df68b5a91574d3d4fa6e41b65deec4df1"
+dependencies = [
+ "adler2",
+]
+
 [[package]]
 name = "normalize-line-endings"
 version = "0.3.0"
@@ -755,7 +774,7 @@ dependencies = [
  "phf_shared",
  "proc-macro2",
  "quote",
- "syn 2.0.72",
+ "syn",
 ]
 
 [[package]]
@@ -783,7 +802,7 @@ dependencies = [
  "crc32fast",
  "fdeflate",
  "flate2",
- "miniz_oxide",
+ "miniz_oxide 0.7.4",
 ]
 
 [[package]]
@@ -845,7 +864,7 @@ dependencies = [
 
 [[package]]
 name = "qrtool"
-version = "0.11.4"
+version = "0.11.5"
 dependencies = [
  "anstyle",
  "anstyle-lossy",
@@ -875,9 +894,9 @@ checksum = "a993555f31e5a609f617c12db6250dedcac1b0a85076912c436e6fc9b2c8e6a3"
 
 [[package]]
 name = "quote"
-version = "1.0.36"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
+checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
 dependencies = [
  "proc-macro2",
 ]
@@ -954,9 +973,9 @@ checksum = "7a66a03ae7c801facd77a29370b4faec201768915ac14a721ba36f20bc9c209b"
 
 [[package]]
 name = "resvg"
-version = "0.42.0"
+version = "0.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "944d052815156ac8fa77eaac055220e95ba0b01fa8887108ca710c03805d9051"
+checksum = "c7314563c59c7ce31c18e23ad3dd092c37b928a0fa4e1c0a1a6504351ab411d1"
 dependencies = [
  "log",
  "pico-args",
@@ -968,9 +987,9 @@ dependencies = [
 
 [[package]]
 name = "rgb"
-version = "0.8.45"
+version = "0.8.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ade4539f42266ded9e755c605bdddf546242b2c961b03b06a7375260788a0523"
+checksum = "57397d16646700483b67d2dd6511d79318f9d057fdbd21a4066aeac8b41d310a"
 dependencies = [
  "bytemuck",
 ]
@@ -1006,18 +1025,18 @@ checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
 [[package]]
 name = "rustc_version"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
 dependencies = [
  "semver",
 ]
 
 [[package]]
 name = "rustix"
-version = "0.38.34"
+version = "0.38.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70dc5ec042f7a43c4a73241207cecc9873a06d45debb38b329f8541d85c2730f"
+checksum = "8acb788b847c24f28525660c4d7758620a7210875711f79e7f663cc152726811"
 dependencies = [
  "bitflags 2.6.0",
  "errno",
@@ -1040,24 +1059,30 @@ checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
 
 [[package]]
 name = "serde"
-version = "1.0.204"
+version = "1.0.210"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc76f558e0cbb2a839d37354c575f1dc3fdc6546b5be373ba43d95f231bf7c12"
+checksum = "c8e3592472072e6e22e0a54d5904d9febf8508f65fb8552499a1abc7d1078c3a"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.204"
+version = "1.0.210"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
+checksum = "243902eda00fad750862fc144cea25caca5e20d615af0a81bee94ca738f1df1f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.72",
+ "syn",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.7"
@@ -1117,9 +1142,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "svgtypes"
-version = "0.15.1"
+version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fae3064df9b89391c9a76a0425a69d124aee9c5c28455204709e72c39868a43c"
+checksum = "794de53cc48eaabeed0ab6a3404a65f40b3e38c067e4435883a65d2aa4ca000e"
 dependencies = [
  "kurbo",
  "siphasher 1.0.1",
@@ -1127,20 +1152,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.109"
+version = "2.0.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
-[[package]]
-name = "syn"
-version = "2.0.72"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc4b9b9bf2add8093d3f2c0204471e951b2285580335de42f9d2534f3ae7a8af"
+checksum = "9f35bcdf61fd8e7be6caf75f429fdca8beb3ed76584befb503b1569faee373ed"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1149,9 +1163,9 @@ dependencies = [
 
 [[package]]
 name = "sysexits"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4008983d29e823b1415f5f12732d5c9a44059795fb6218262cc0185668851e2"
+checksum = "c5649c51a0a23b49261cc66a328925546beaf86d7c9af801b3993732deccec7a"
 
 [[package]]
 name = "tap"
@@ -1214,15 +1228,15 @@ dependencies = [
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.12"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
 
 [[package]]
 name = "usvg"
-version = "0.42.0"
+version = "0.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b84ea542ae85c715f07b082438a4231c3760539d902e11d093847a0b22963032"
+checksum = "6803057b5cbb426e9fb8ce2216f3a9b4ca1dd2c705ba3cbebc13006e437735fd"
 dependencies = [
  "base64",
  "data-url",
@@ -1444,7 +1458,7 @@ checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.72",
+ "syn",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index f30fe52a..7639107c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@
 
 [package]
 name = "qrtool"
-version = "0.11.4"
+version = "0.11.5"
 authors = ["Shun Sakai <sorairolake@protonmail.ch>"]
 edition = "2021"
 rust-version = "1.74.0"
@@ -23,22 +23,22 @@ include = ["/LICENSES", "/README.md", "/src"]
 anstyle = { version = "1.0.8", default-features = false, optional = true }
 anstyle-lossy = { version = "1.1.2", optional = true }
 anstyle-yansi = { version = "2.0.1", optional = true }
-anyhow = "1.0.86"
-clap = { version = "4.5.13", features = ["derive", "wrap_help"] }
-clap_complete = "4.5.12"
+anyhow = "1.0.89"
+clap = { version = "4.5.18", features = ["derive", "wrap_help"] }
+clap_complete = "4.5.29"
 clap_complete_nushell = "4.5.3"
-csscolorparser = "0.6.2"
+csscolorparser = "0.7.0"
 image = { version = "0.25.2", default-features = false, features = ["png", "rayon"] }
-is-svg = { version = "0.1.1", optional = true }
+is-svg = { version = "0.1.2", optional = true }
 oxipng = { version = "9.1.2", default-features = false, features = ["parallel", "zopfli"], optional = true }
 qrcode = "0.14.1"
-resvg = { version = "0.42.0", default-features = false, optional = true }
+resvg = { version = "0.43.0", default-features = false, optional = true }
 rqrr = "0.7.1"
-sysexits = "0.8.1"
+sysexits = "0.8.2"
 yansi = { version = "1.0.1", default-features = false, optional = true }
 
 [dev-dependencies]
-assert_cmd = "2.0.15"
+assert_cmd = "2.0.16"
 predicates = "3.1.2"
 
 [features]
diff --git a/README.md b/README.md
index 728d7eda..232c8b69 100644
--- a/README.md
+++ b/README.md
@@ -122,9 +122,10 @@ Generate this image:
 ### Colored output
 
 Use `--foreground` and `--background` options to change the foreground and
-background colors of the generated image. These options takes a [CSS color
-string] such as `brown`, `#a52a2a` or `rgb(165 42 42)`. The default foreground
-color is black and the background color is white of CSS's named colors.
+background colors of the generated image. These options takes a
+[CSS color string] such as `brown`, `#a52a2a` or `rgb(165 42 42)`. The default
+foreground color is black and the background color is white of CSS's named
+colors.
 
 ```sh
 qrtool encode --foreground brown --background lightslategray "QR code" > output.png
@@ -141,8 +142,9 @@ sequences:
 qrtool encode -t ansi-true-color --foreground brown --background lightslategray "QR code"
 ```
 
-Note that lossy conversion may be performed depending on the color depth
-supported by the output format.
+Note that lossy conversion may be performed depending on the color space
+supported by the method to specify a color, the color depth supported by the
+output format, etc.
 
 ### Supported input image formats
 
@@ -285,6 +287,16 @@ Please see the following:
 - [`qrtool-decode(1)`]
 - [`qrtool-help(1)`]
 
+## Source code
+
+The upstream repository is available at
+<https://github.com/sorairolake/qrtool.git>.
+
+The source code is also available at:
+
+- <https://gitlab.com/sorairolake/qrtool.git>
+- <https://codeberg.org/sorairolake/qrtool.git>
+
 ## Changelog
 
 Please see [CHANGELOG.adoc].
@@ -302,10 +314,10 @@ This program is inspired by [`qrencode`] and [`zbarimg`].
 Copyright &copy; 2022&ndash;2024 Shun Sakai and other contributors (see
 [AUTHORS.adoc])
 
-1. This program is distributed under the terms of either the _Apache License
-   2.0_ or the _MIT License_.
-2. Some files are distributed under the terms of the _Creative Commons
-   Attribution 4.0 International Public License_.
+1.  This program is distributed under the terms of either the _Apache License
+    2.0_ or the _MIT License_.
+2.  Some files are distributed under the terms of the _Creative Commons
+    Attribution 4.0 International Public License_.
 
 This project is compliant with version 3.2 of the [_REUSE Specification_]. See
 copyright notices of individual files for more details on copyright and
diff --git a/docs/book/modules/ROOT/nav.adoc b/docs/book/modules/ROOT/nav.adoc
index 075a5982..bba3fe81 100644
--- a/docs/book/modules/ROOT/nav.adoc
+++ b/docs/book/modules/ROOT/nav.adoc
@@ -13,6 +13,7 @@
 * xref:man/man1/qrtool-help.1.adoc[`qrtool-help(1)`]
 
 .Resources
+* xref:repository.adoc[]
 * xref:changelog.adoc[]
 * xref:contributing.adoc[]
 * xref:authors.adoc[]
diff --git a/docs/book/modules/ROOT/pages/repository.adoc b/docs/book/modules/ROOT/pages/repository.adoc
new file mode 100644
index 00000000..402397c5
--- /dev/null
+++ b/docs/book/modules/ROOT/pages/repository.adoc
@@ -0,0 +1,12 @@
+// SPDX-FileCopyrightText: 2024 Shun Sakai
+//
+// SPDX-License-Identifier: CC-BY-4.0
+
+= Source Code
+
+The upstream repository is available at
+https://github.com/sorairolake/qrtool.git.
+
+.The source code is also available at
+* https://gitlab.com/sorairolake/qrtool.git
+* https://codeberg.org/sorairolake/qrtool.git
diff --git a/docs/book/modules/ROOT/pages/usage.adoc b/docs/book/modules/ROOT/pages/usage.adoc
index 2467a353..dc33642c 100644
--- a/docs/book/modules/ROOT/pages/usage.adoc
+++ b/docs/book/modules/ROOT/pages/usage.adoc
@@ -122,7 +122,8 @@ qrtool encode -t ansi-true-color --foreground brown --background lightslategray
 ----
 
 CAUTION: Note that lossy conversion may be performed depending on the color
-depth supported by the output format.
+space supported by the method to specify a color, the color depth supported by
+the output format, etc.
 
 == Supported input image formats
 
diff --git a/docs/man/man1/qrtool-encode.1.adoc b/docs/man/man1/qrtool-encode.1.adoc
index f6775aeb..71d22b5e 100644
--- a/docs/man/man1/qrtool-encode.1.adoc
+++ b/docs/man/man1/qrtool-encode.1.adoc
@@ -4,7 +4,7 @@
 
 = qrtool-encode(1)
 // Specify in UTC.
-:docdate: 2024-08-02
+:docdate: 2024-09-20
 :doctype: manpage
 ifdef::revnumber[:mansource: qrtool {revnumber}]
 ifndef::revnumber[:mansource: qrtool]
@@ -77,6 +77,12 @@ be specified as a value for these options.
 
 |HWB function
 |`hwb(50.6 0% 0%)`, `hwb(0 66.3% 33.7% / 49.8%)`
+
+|Oklab function
+|`oklab(50.4% -0.0906 0.0069)`, `oklab(61.9% -0.0120 -0.0302 / 0.5)`
+
+|Oklch function
+|`oklch(59.41% 0.16 301.29)`, `oklch(61.9% 0.032 248.35 / 49.8%)`
 |===
 
 This command can also encode the input data in a Micro QR code. This can embed
@@ -297,15 +303,17 @@ endif::[]
 
   Foreground color. _COLOR_ takes a CSS color string. Colored output is only
   available when the output format is PNG, SVG or any ANSI escape sequences.
-  Note that lossy conversion may be performed depending on the color depth
-  supported by the output format. Default is black.
+  Note that lossy conversion may be performed depending on the color space
+  supported by the method to specify a color, the color depth supported by the
+  output format, etc. Default is black.
 
 *--background* _COLOR_::
 
   Background color. _COLOR_ takes a CSS color string. Colored output is only
   available when the output format is PNG, SVG or any ANSI escape sequences.
-  Note that lossy conversion may be performed depending on the color depth
-  supported by the output format. Default is white.
+  Note that lossy conversion may be performed depending on the color space
+  supported by the method to specify a color, the color depth supported by the
+  output format, etc. Default is white.
 
 *--verbose*::
 
diff --git a/package-lock.json b/package-lock.json
index 3364a220..bd735223 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1029,9 +1029,9 @@
       "license": "BSD-3-Clause"
     },
     "node_modules/ignore": {
-      "version": "5.3.1",
-      "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.3.1.tgz",
-      "integrity": "sha512-5Fytz/IraMjqpwfd34ke28PTVMjZjJG2MPn5t7OE4eUCUNf8BAa7b5WUS9/Qvr6mwOQS7Mk6vdsMno5he+T8Xw==",
+      "version": "5.3.2",
+      "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.3.2.tgz",
+      "integrity": "sha512-hsBTNUqQTDwkWtcdYI2i06Y/nUBEsNEDJKjWdigLvegy8kDuJAS8uRlpkkcQpyEXL0Z/pjDy5HBmMjRCJ2gq+g==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -1184,9 +1184,9 @@
       }
     },
     "node_modules/micromatch": {
-      "version": "4.0.7",
-      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.7.tgz",
-      "integrity": "sha512-LPP/3KorzCwBxfeUuZmaR6bG2kdeHSbe0P2tY3FLRU4vYrjYz5hI4QZwV0njUx3jeuKe67YukQ1LSPZBKDqO/Q==",
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz",
+      "integrity": "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -1522,9 +1522,9 @@
       }
     },
     "node_modules/pump": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
-      "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.2.tgz",
+      "integrity": "sha512-tUPXtzlGM8FE3P0ZL6DVs/3P58k9nk8/jZeQCurTJylQA8qFYzHFfhBJkuqyE0FifOsQ0uKWekiZ5g8wtr28cw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -1676,9 +1676,9 @@
       "license": "MIT"
     },
     "node_modules/safe-stable-stringify": {
-      "version": "2.4.3",
-      "resolved": "https://registry.npmjs.org/safe-stable-stringify/-/safe-stable-stringify-2.4.3.tgz",
-      "integrity": "sha512-e2bDA2WJT0wxseVd4lsDP4+3ONX6HpMXQa1ZhFQ7SU+GjvORCmShbCMltrtIDfkYhVHrOcPtj+KhmDBdPdZD1g==",
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/safe-stable-stringify/-/safe-stable-stringify-2.5.0.tgz",
+      "integrity": "sha512-b3rppTKm9T+PsVCBEOUR46GWI7fdOs00VKZ1+9c1EWDaDMvjQc6tUwuFyIprgGgTcWoVHSKrU8H31ZHA2e0RHA==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -1791,9 +1791,9 @@
       }
     },
     "node_modules/streamx": {
-      "version": "2.18.0",
-      "resolved": "https://registry.npmjs.org/streamx/-/streamx-2.18.0.tgz",
-      "integrity": "sha512-LLUC1TWdjVdn1weXGcSxyTR3T4+acB6tVGXT95y0nGbca4t4o/ng1wKAGTljm9VicuCVLvRlqFYXYy5GwgM7sQ==",
+      "version": "2.20.1",
+      "resolved": "https://registry.npmjs.org/streamx/-/streamx-2.20.1.tgz",
+      "integrity": "sha512-uTa0mU6WUC65iUvzKH4X9hEdvSW7rbPxPtwfWiLMSj3qTdQbAiUboZTxauKfpFuGIGa1C2BYijZ7wgdUXICJhA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -1839,9 +1839,9 @@
       }
     },
     "node_modules/text-decoder": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/text-decoder/-/text-decoder-1.1.1.tgz",
-      "integrity": "sha512-8zll7REEv4GDD3x4/0pW+ppIxSNs7H1J10IKFZsuOMscumCdM2a+toDGLPA3T+1+fLBql4zbt5z83GEQGGV5VA==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/text-decoder/-/text-decoder-1.2.0.tgz",
+      "integrity": "sha512-n1yg1mOj9DNpk3NeZOx7T6jchTbyJS3i3cucbNN6FcdPriMZx7NsgrGpWWdWZZGxD7ES1XB+3uoqHMgOKaN+fg==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
@@ -1872,16 +1872,16 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.6.3",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.3.tgz",
-      "integrity": "sha512-xNvxJEOUiWPGhUuUdQgAJPKOOJfGnIyKySOc09XkKsgdUV/3E2zvwZYdejjmRgPCgcym1juLH3226yA7sEFJKQ==",
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.7.0.tgz",
+      "integrity": "sha512-gLXCKdN1/j47AiHiOkJN69hJmcbGTHI0ImLmbYLHykhgeN0jVGola9yVjFgzCUklsZQMW55o+dW7IXv3RCXDzA==",
       "dev": true,
       "license": "0BSD"
     },
     "node_modules/uglify-js": {
-      "version": "3.19.1",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.19.1.tgz",
-      "integrity": "sha512-y/2wiW+ceTYR2TSSptAhfnEtpLaQ4Ups5zrjB2d3kuVxHj16j/QJwPl5PvuGy9uARb39J0+iKxcRPvtpsx4A4A==",
+      "version": "3.19.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.19.3.tgz",
+      "integrity": "sha512-v3Xu+yuwBXisp6QYTcH4UbH+xYJXqnq2m/LtQVWKWzYc1iehYnLixoQDN9FH6/j9/oybfd6W9Ghwkl8+UMKTKQ==",
       "dev": true,
       "license": "BSD-2-Clause",
       "optional": true,
diff --git a/src/cli.rs b/src/cli.rs
index 0d72543e..3d69263c 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -211,8 +211,9 @@ pub struct Encode {
     ///
     /// <COLOR> takes a CSS color string. Colored output is only available when
     /// the output format is PNG, SVG or any ANSI escape sequences. Note that
-    /// lossy conversion may be performed depending on the color depth supported
-    /// by the output format.
+    /// lossy conversion may be performed depending on the color space supported
+    /// by the method to specify a color, the color depth supported by the
+    /// output format, etc.
     #[arg(long, default_value("black"), value_name("COLOR"))]
     pub foreground: Color,
 
@@ -220,8 +221,9 @@ pub struct Encode {
     ///
     /// <COLOR> takes a CSS color string. Colored output is only available when
     /// the output format is PNG, SVG or any ANSI escape sequences. Note that
-    /// lossy conversion may be performed depending on the color depth supported
-    /// by the output format.
+    /// lossy conversion may be performed depending on the color space supported
+    /// by the method to specify a color, the color depth supported by the
+    /// output format, etc.
     #[arg(long, default_value("white"), value_name("COLOR"))]
     pub background: Color,
 
diff --git a/tests/data/colored/hwba.png b/tests/data/colored/hwb_with_alpha.png
similarity index 100%
rename from tests/data/colored/hwba.png
rename to tests/data/colored/hwb_with_alpha.png
diff --git a/tests/data/colored/hwba.png.license b/tests/data/colored/hwb_with_alpha.png.license
similarity index 100%
rename from tests/data/colored/hwba.png.license
rename to tests/data/colored/hwb_with_alpha.png.license
diff --git a/tests/data/colored/oklab.png b/tests/data/colored/oklab.png
new file mode 100644
index 00000000..4282e9ef
Binary files /dev/null and b/tests/data/colored/oklab.png differ
diff --git a/tests/data/colored/oklab.png.license b/tests/data/colored/oklab.png.license
new file mode 100644
index 00000000..df26b1a7
--- /dev/null
+++ b/tests/data/colored/oklab.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2024 Shun Sakai
+
+SPDX-License-Identifier: Apache-2.0 OR MIT
diff --git a/tests/data/colored/oklab_with_alpha.png b/tests/data/colored/oklab_with_alpha.png
new file mode 100644
index 00000000..1bfc17ff
Binary files /dev/null and b/tests/data/colored/oklab_with_alpha.png differ
diff --git a/tests/data/colored/oklab_with_alpha.png.license b/tests/data/colored/oklab_with_alpha.png.license
new file mode 100644
index 00000000..df26b1a7
--- /dev/null
+++ b/tests/data/colored/oklab_with_alpha.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2024 Shun Sakai
+
+SPDX-License-Identifier: Apache-2.0 OR MIT
diff --git a/tests/data/colored/oklch.png b/tests/data/colored/oklch.png
new file mode 100644
index 00000000..99c9d676
Binary files /dev/null and b/tests/data/colored/oklch.png differ
diff --git a/tests/data/colored/oklch.png.license b/tests/data/colored/oklch.png.license
new file mode 100644
index 00000000..df26b1a7
--- /dev/null
+++ b/tests/data/colored/oklch.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2024 Shun Sakai
+
+SPDX-License-Identifier: Apache-2.0 OR MIT
diff --git a/tests/data/colored/oklch_with_alpha.png b/tests/data/colored/oklch_with_alpha.png
new file mode 100644
index 00000000..a03cf7df
Binary files /dev/null and b/tests/data/colored/oklch_with_alpha.png differ
diff --git a/tests/data/colored/oklch_with_alpha.png.license b/tests/data/colored/oklch_with_alpha.png.license
new file mode 100644
index 00000000..df26b1a7
--- /dev/null
+++ b/tests/data/colored/oklch_with_alpha.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2024 Shun Sakai
+
+SPDX-License-Identifier: Apache-2.0 OR MIT
diff --git a/tests/encode.rs b/tests/encode.rs
index 237ee109..c2b0e7d3 100644
--- a/tests/encode.rs
+++ b/tests/encode.rs
@@ -2397,7 +2397,7 @@ fn encode_from_hwb_color_with_alpha() {
         .unwrap();
     assert_eq!(
         image::load_from_memory(&output.stdout).unwrap(),
-        image::open("tests/data/colored/hwba.png").unwrap()
+        image::open("tests/data/colored/hwb_with_alpha.png").unwrap()
     );
     assert!(output.status.success());
 }
@@ -2434,6 +2434,142 @@ fn encode_from_invalid_hwb_bg_color() {
         .stderr(predicate::str::contains("invalid hwb format"));
 }
 
+#[test]
+fn encode_from_oklab_color() {
+    let output = utils::command::command()
+        .arg("encode")
+        .arg("--foreground")
+        .arg("oklab(50.4% -0.0906 0.0069)")
+        .arg("--background")
+        .arg("oklab(61.9% -0.0120 -0.0302)")
+        .arg("QR code")
+        .output()
+        .unwrap();
+    assert_eq!(
+        DynamicImage::ImageRgb8(image::load_from_memory(&output.stdout).unwrap().to_rgb8()),
+        image::open("tests/data/colored/oklab.png").unwrap()
+    );
+    assert!(output.status.success());
+}
+
+#[test]
+fn encode_from_oklab_color_with_alpha() {
+    let output = utils::command::command()
+        .arg("encode")
+        .arg("--foreground")
+        .arg("oklab(50.4% -0.0906 0.0069 / 0.5)")
+        .arg("--background")
+        .arg("oklab(61.9% -0.0120 -0.0302 / 0.5)")
+        .arg("QR code")
+        .output()
+        .unwrap();
+    assert_eq!(
+        image::load_from_memory(&output.stdout).unwrap(),
+        image::open("tests/data/colored/oklab_with_alpha.png").unwrap()
+    );
+    assert!(output.status.success());
+}
+
+#[test]
+fn encode_from_invalid_oklab_fg_color() {
+    utils::command::command()
+        .arg("encode")
+        .arg("--foreground")
+        .arg("oklab(0)")
+        .arg("QR code")
+        .assert()
+        .failure()
+        .code(2)
+        .stderr(predicate::str::contains(
+            "invalid value 'oklab(0)' for '--foreground <COLOR>'",
+        ))
+        .stderr(predicate::str::contains("invalid oklab format"));
+}
+
+#[test]
+fn encode_from_invalid_oklab_bg_color() {
+    utils::command::command()
+        .arg("encode")
+        .arg("--background")
+        .arg("oklab(0)")
+        .arg("QR code")
+        .assert()
+        .failure()
+        .code(2)
+        .stderr(predicate::str::contains(
+            "invalid value 'oklab(0)' for '--background <COLOR>'",
+        ))
+        .stderr(predicate::str::contains("invalid oklab format"));
+}
+
+#[test]
+fn encode_from_oklch_color() {
+    let output = utils::command::command()
+        .arg("encode")
+        .arg("--foreground")
+        .arg("oklch(59.41% 0.16 301.29)")
+        .arg("--background")
+        .arg("oklch(61.9% 0.032 248.35)")
+        .arg("QR code")
+        .output()
+        .unwrap();
+    assert_eq!(
+        DynamicImage::ImageRgb8(image::load_from_memory(&output.stdout).unwrap().to_rgb8()),
+        image::open("tests/data/colored/oklch.png").unwrap()
+    );
+    assert!(output.status.success());
+}
+
+#[test]
+fn encode_from_oklch_color_with_alpha() {
+    let output = utils::command::command()
+        .arg("encode")
+        .arg("--foreground")
+        .arg("oklch(59.41% 0.16 301.29 / 49.8%)")
+        .arg("--background")
+        .arg("oklch(61.9% 0.032 248.35 / 49.8%)")
+        .arg("QR code")
+        .output()
+        .unwrap();
+    assert_eq!(
+        image::load_from_memory(&output.stdout).unwrap(),
+        image::open("tests/data/colored/oklch_with_alpha.png").unwrap()
+    );
+    assert!(output.status.success());
+}
+
+#[test]
+fn encode_from_invalid_oklch_fg_color() {
+    utils::command::command()
+        .arg("encode")
+        .arg("--foreground")
+        .arg("oklch(0)")
+        .arg("QR code")
+        .assert()
+        .failure()
+        .code(2)
+        .stderr(predicate::str::contains(
+            "invalid value 'oklch(0)' for '--foreground <COLOR>'",
+        ))
+        .stderr(predicate::str::contains("invalid oklch format"));
+}
+
+#[test]
+fn encode_from_invalid_oklch_bg_color() {
+    utils::command::command()
+        .arg("encode")
+        .arg("--background")
+        .arg("oklch(0)")
+        .arg("QR code")
+        .assert()
+        .failure()
+        .code(2)
+        .stderr(predicate::str::contains(
+            "invalid value 'oklch(0)' for '--background <COLOR>'",
+        ))
+        .stderr(predicate::str::contains("invalid oklch format"));
+}
+
 #[test]
 fn encode_from_invalid_fg_color_function() {
     utils::command::command()