Telegram Web K with changes to work inside I2P
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31 lines
607 B
31 lines
607 B
3 years ago
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export function rgbToHsl(r: number, g: number, b: number) {
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r /= 255, g /= 255, b /= 255;
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let max = Math.max(r, g, b),
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min = Math.min(r, g, b);
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let h, s, l = (max + min) / 2;
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if(max === min) {
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h = s = 0; // achromatic
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} else {
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let d = max - min;
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s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
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switch (max) {
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case r:
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h = (g - b) / d + (g < b ? 6 : 0);
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break;
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case g:
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h = (b - r) / d + 2;
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break;
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case b:
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h = (r - g) / d + 4;
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break;
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}
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h /= 6;
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}
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return ({
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h: h,
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s: s,
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l: l,
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});
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}
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