颜色RGB转十六进制

<script>
function colorRGBtoHex(color) {
var rgb = color.split(',');
var r = parseInt(rgb[0].split('(')[1]);
var g = parseInt(rgb[1]);
var b = parseInt(rgb[2].split(')')[0]);
var hex = "#" + ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);
return hex;
}
</script>