color-measure

A collection of color metric functions.

$ npm install color-measure

var luma = require('color-measure/luminance');
luminance(color); //0.78

Metrics

• luminance (aka luminosity) — get relative luminance.
• contrast — measure contrast ratio of two colors.
• level — measure the readability level of two colors, based on contrast ratio.
• is-dark — check whether color is dark via YIQ transform.
• is-light — check whether color is dark via YIQ transform.
• sugest measure

Related

• color-manipulate — a collection of color manipulation functions.
• color-blend — a collection of color blending functions.
• color-space — a collection of color spaces and conversions between them.
• color — color class, exposing metrics as own API.