Louis Louis-7
Louis-7
/ background-color.js
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April 1, 2025 01:04
Determine font color based on the background color
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| // suppose background color is: rbg(0, 23, 255) | |
| function textColorBasedOnBackground(backgroundColor) { | |
| backgroundColor = backgroundColor.substring(1); | |
| const r = parseInt(backgroundColor.substring(0,2), 16); // 0 ~ 255 | |
| const g = parseInt(backgroundColor.substring(2,4), 16); | |
| const b = parseInt(backgroundColor.substring(4,6), 16); | |
| const srgb = [r / 255, g / 255, b / 255]; | |
| const x = srgb.map((i) => { | |
| if (i <= 0.04045) { |