In daily development, the conversion between color gamut values in different formats is often used, and a workaround is given below.
Copy Code code as follows:
Regular expressions for hexadecimal color values
var reg =/^# ([0-9a-fa-f]{3}|[ 0-9A-FA-F]{6}) $/;
/*rgb Color conversion to 16
String.prototype.colorHex = function () {
var that = this;
if (/^ (rgb| RGB)/.test (that)) {
var acolor = That.replace (/(?: \ (|\) |rgb| RGB) */g, ""). Split (",");
var strhex = "#";
for (var i=0; i<acolor.length; i++) {
var hex = number (Acolor). toString (16);
if (hex = = "0") {
Hex + = hex;
}
Strhex + = hex;
}
if (strhex.length!== 7) {
Strhex = that;
}
return strhex;
}else if (reg.test (that)) {
var anum = That.replace (/#/, ""). Split ("");
if (anum.length = = 6) {
return to that;
}else if (anum.length = = 3) {
var numhex = "#";
for (var i=0; i<anum.length; i+=1) {
Numhex + = (anum+anum);
}
return numhex;
}
}else{
return to that;
}};
/*16 color into RGB format * *
STRING.PROTOTYPE.COLORRGB = function () {
var scolor = This.tolowercase ();
if (Scolor && reg.test (scolor)) {
if (scolor.length = = 4) {
var scolornew = "#";
for (var i=1; i<4; i+=1) {
Scolornew + + scolor.slice (i,i+1). Concat (Scolor.slice (i,i+1));
}
Scolor = scolornew;
}
Working with six-bit color values
var scolorchange = [];
for (var i=1; i<7; i+=2) {
Scolorchange.push (parseint ("0x" +scolor.slice (i,i+2));
}
Return "RGB (" + Scolorchange.join (",") + ")";
}else{
return scolor;
}};
To use the color conversion method:
Copy Code code as follows:
Ar sRgb = "RGB (245, the)", ShEx = "#34538b";
var shexcolor = Srgb.colorhex ();
var srgbcolor = Shex.colorrgb ();
