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17 lines
564 B
TypeScript
17 lines
564 B
TypeScript
/**
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* Choose fg color by bg color
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* @see https://www.npmjs.com/package/colord
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* @see https://www.w3.org/TR/AERT/#color-contrast
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*/
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export function pickTextColor(
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bgColor: string,
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lightColor: string,
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darkColor: string
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) {
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const color = bgColor.charAt(0) === "#" ? bgColor.substring(1, 7) : bgColor;
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const r = parseInt(color.substring(0, 2), 16); // hexToR
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const g = parseInt(color.substring(2, 4), 16); // hexToG
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const b = parseInt(color.substring(4, 6), 16); // hexToB
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return r * 0.299 + g * 0.587 + b * 0.114 > 186 ? darkColor : lightColor;
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}
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