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17 lines
511 B
TypeScript
17 lines
511 B
TypeScript
// Packages
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import Color from 'color';
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// returns a background color that's in hex
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// format including the alpha channel (e.g.: `#00000050`)
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// input can be any css value (rgb, hsl, string…)
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export default (bgColor: string) => {
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const color = Color(bgColor);
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if (color.alpha() === 1) {
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return color.hex().toString();
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}
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// http://stackoverflow.com/a/11019879/1202488
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const alphaHex = Math.round(color.alpha() * 255).toString(16);
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return `#${alphaHex}${color.hex().toString().substr(1)}`;
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};
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