RGB颜色转换成16进制：
var str = "rgb(255,0,0)";
function colorRGB2Hex(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;
}
console.log(colorRGB2Hex(str));//ff0000
16进制转换成RGB颜色,自己写了一个可是没有别人写的高级，所以有所借鉴，感谢Sara
var str = "#f00";
var reg = /^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$/;
function ColorHex2Rgb(hex){
var HexColor = hex.toLowerCase();
if(HexColor && reg.test(HexColor)){
if(HexColor.length === 4){
var sColorNew = "#";
for(var i=1; i<4; i+=1){
sColorNew += HexColor.slice(i,i+1).concat(HexColor.slice(i,i+1));
}
HexColor = sColorNew;
}
var sColorChange = [];
for(var i=1; i<7; i+=2){
sColorChange.push(parseInt("0x"+HexColor.slice(i,i+2)));
}
// return "RGB(" + sColorChange.join(",") + ")";
return sColorChange;
}else{
return HexColor;
}
}
console.log(ColorHex2Rgb(str));
