Functions to get random colours string in hex or RGB

small-random-colours.js

const byteNumber = () => Math.random() * 2 ** 8 >> 0;

export const randomHex = () =>
  '#' + (2 ** (2 ** 3 * 3) * Math.random() >> 0).toString(16).padStart(6,'0')
;

export const randomRGB = () => 
  `rgb(${[byteNumber(),byteNumber(),byteNumber()]})`
;