From f34a0baee81b4d9bea9c2ffc13abb334cb52f803 Mon Sep 17 00:00:00 2001
From: Josh Junon <josh.junon@protonmail.com>
Date: Tue, 5 Apr 2022 10:54:45 +0200
Subject: [PATCH] use correct WCAG luminance constant (fixes #248)

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index bdb850e..9d6d637 100644
--- a/index.js
+++ b/index.js
@@ -267,7 +267,7 @@ Color.prototype = {
 		const lum = [];
 		for (const [i, element] of rgb.entries()) {
 			const chan = element / 255;
-			lum[i] = (chan <= 0.039_28) ? chan / 12.92 : ((chan + 0.055) / 1.055) ** 2.4;
+			lum[i] = (chan <= 0.040_45) ? chan / 12.92 : ((chan + 0.055) / 1.055) ** 2.4;
 		}
 
 		return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];