@skhemata/skhemata-form/src/validator/lib/isHexColor.js

Skhemata Form Web Component. This web component can be used as base web component when working with forms and inputs.

import assertString from './util/assertString';

const hexcolor = /^#?([0-9A-F]{3}|[0-9A-F]{4}|[0-9A-F]{6}|[0-9A-F]{8})$/i;

export default function isHexColor(str) {
  assertString(str);
  return hexcolor.test(str);
}