Check if a string is a hexadecimal color
Written byPhuoc Nguyen
Created
09 Jun, 2020
Last updated
13 Oct, 2021
Category
Validator
JavaScript version
isHexColor.js
const isHexColor = (color) => /^#([0-9A-F]{3}|[0-9A-F]{4}|[0-9A-F]{6}|[0-9A-F]{8})$/i.test(color);TypeScript version
isHexColor.ts
const isHexColor = (color: string): boolean => /^#([0-9A-F]{3}|[0-9A-F]{4}|[0-9A-F]{6}|[0-9A-F]{8})$/i.test(color);Examples
examples.js
isHexColor('#012'); // true
isHexColor('#A1B2C3'); // true
isHexColor('012'); // false
isHexColor('#GHIJKL'); // false
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Phước Nguyễn