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/**
* Convert hex color to rgb array
*
* @param hex string
* @returns array|null
*/
export const hexToRgb = hex => {
// Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF")
const shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
const fullHex = hex.replace(shorthandRegex, (_m, r, g, b) => r + r + g + g + b + b);
const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(fullHex);
return result
? [parseInt(result[1], 16), parseInt(result[2], 16), parseInt(result[3], 16)]
: null;
};
export const textColorForBackground = backgroundColor => {
const [r, g, b] = hexToRgb(backgroundColor);
if (r + g + b > 500) {
return '#333333';
}
return '#FFFFFF';
};
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