First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>
2026-05-08 14:43:16 +08:00
commit 0b64e2de94
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+/* IMPORT */
+import _ from '../utils/index.js';
+import luminance from './luminance.js';
+/* MAIN */
+const contrast = (color1, color2) => {
+    const luminance1 = luminance(color1);
+    const luminance2 = luminance(color2);
+    const max = Math.max(luminance1, luminance2);
+    const min = Math.min(luminance1, luminance2);
+    const ratio = (max + Number.EPSILON) / (min + Number.EPSILON);
+    return _.lang.round(_.lang.clamp(ratio, 1, 10));
+};
+/* EXPORT */
+export default contrast;