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