diff --git a/index.js b/index.js
index 25fba85..e8388c2 100644
--- a/index.js
+++ b/index.js
@@ -129,7 +129,7 @@ cs.get.hsl = function (string) {
 		return null;
 	}
 
-	var hsl = /^hsla?\(\s*([+-]?(?:\d{0,3}\.)?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/;
+	var hsl = /^hsla?\(\s*([+-]?(?:\d{0,3}\.)?\d+)(?:deg)?\s*,?\s*([+-]?[\d\.]+)%\s*,?\s*([+-]?[\d\.]+)%\s*(?:[,|\/]\s*([+-]?[\d\.]+)\s*)?\)$/;
 	var match = string.match(hsl);
 
 	if (match) {