asHexString method
Returns
Implementation
String asHexString() {
final buffer = StringBuffer();
buffer.write("#");
buffer.write(this.r.toRadixString(16).padLeft(2, "0"));
buffer.write(this.g.toRadixString(16).padLeft(2, "0"));
buffer.write(this.b.toRadixString(16).padLeft(2, "0"));
return buffer.toString().toUpperCase();
}