16進制轉rgba

function hexToRgba(hex, opacity) {
return "rgba(" + parseInt("0x" + hex.slice(1, 3)) + "," + parseInt("0x" + hex.slice(3, 5)) + "," + parseInt("0x" + hex.slice(5, 7)) + "," + opacity + ")";
}
使用方法
hexToRgba('#00c154', 0.2)