Convert color code to hexadecimal code in javascript

Question

I'm making a program that requests a user's profile, and prints the name in the same colour as selected by the user. The problem is that the colour code I'm getting is this: 0xff1ba5f5, and that to print the colour I need the hexadecimal colour code. Is there any way to convert this kind of colour code to hexadecimal code?

Answer 1

It's likely RGBA. Depending on how you need to use it, this site should point you in the right direction.

Basically, it already is hex, if you take 0x off the front of it. The values are 0xrrggbbaa. Where you have RGBA represented by rr, gg, bb, and aa respectively. RGB define the color (Red, Green, and Blue), while A represents the Alpha, or transparency.

Answer 2

Try this

const hexString = `0xff1ba5f5`
const rgbaString = hexString.slice(2)
console.log(rgbaString); // ff1ba5f5

const rgbaHex = hexString.match(/\w{2}/g) 
console.log(rgbaHex); // array of hex

const hexColor = `#${rgbaHex.slice(1,4).join("")}`;
console.log(hexColor); // hex color another way

const rgba = `rgba(${rgbaHex.slice(1).map(hex => parseInt(hex,16))})`
console.log(rgba); // this can actually be used in HTML

Now you can feed this into one of the codes at How to convert rgba to a transparency-adjusted-hex?

Answer 3

var rgbToHex = function(rgb) {
  var hex = Number(rgb).toString(16);
  if (hex.length < 2) {
    hex = "0" + hex;
  }
  return hex;
};

var a = rgbToHex(0xff1ba5f5)
console.log(a)