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README.md

hex-color-regex npmjs.com The MIT License

The best regular expression (regex) for matching hex color values from string.

code climate standard code style travis build status coverage status dependency status

Install

npm i hex-color-regex --save
npm test

Usage

For more use-cases see the tests

  • [opts] {Object} pass strict: true for strict mode
  • return {RegExp}

Example

var hexColorRegex = require('hex-color-regex')

hexColorRegex().test('#f3f}') //=> true
hexColorRegex({strict: true}).test('#f3f}') //=> false

hexColorRegex().test('foo #f3f bar') //=> true
hexColorRegex({strict: true}).test('foo #f3f bar') //=> false

hexColorRegex().test('#a54f2c}') //=> true
hexColorRegex({strict: true}).test('#a54f2c}') //=> false

hexColorRegex().test('foo #a54f2c bar') //=> true
hexColorRegex({strict: true}).test('foo #a54f2c bar') //=> false

hexColorRegex().test('#ffff') //=> false
hexColorRegex().test('ffff') //=> false

hexColorRegex().test('#fff') //=> true
hexColorRegex().test('fff') //=> false

hexColorRegex().test('#4g1') //=> false
hexColorRegex().test('4g1') //=> false
hexColorRegex().test('#zY1') //=> false
hexColorRegex().test('zY1') //=> false
hexColorRegex().test('#7f68ZY') //=> false
hexColorRegex().test('7f68ZY') //=> false
hexColorRegex().test('ffffff') //=> false

hexColorRegex().test('#afebe3') //=> true
hexColorRegex().test('#AFEBE3') //=> true
hexColorRegex().test('#3cb371') //=> true
hexColorRegex().test('#3CB371') //=> true
hexColorRegex().test('#556b2f') //=> true
hexColorRegex().test('#556B2F') //=> true
hexColorRegex().test('#708090') //=> true
hexColorRegex().test('#7b68ee') //=> true
hexColorRegex().test('#7B68EE') //=> true
hexColorRegex().test('#eeeeee') //=> true
hexColorRegex().test('#ffffff') //=> true
hexColorRegex().test('#111111') //=> true

hexColorRegex().test('#afe') //=> true
hexColorRegex().test('#AF3') //=> true
hexColorRegex().test('#3cb') //=> true
hexColorRegex().test('#3CB') //=> true
hexColorRegex().test('#b2f') //=> true
hexColorRegex().test('#5B2') //=> true
hexColorRegex().test('#708') //=> true
hexColorRegex().test('#68e') //=> true
hexColorRegex().test('#7AF') //=> true
hexColorRegex().test('#777') //=> true
hexColorRegex().test('#FFF') //=> true
hexColorRegex().test('#fff') //=> true

Matching groups

  • match[0] hex value with hash - #f3f3f3
  • match[1] hex value without the hash - f3f3f3

Example

hexColorRegex().exec('foo #fff bar')
//=> [ '#fff', 'fff', index: 4, input: 'foo #fff bar' ]

hexColorRegex({strict: true}).exec('foo #fff bar')
//=> null

hexColorRegex().exec('foo #f3f3f3 bar')
//=> [ '#f3f3f3', 'f3f3f3', index: 4, input: 'foo #f3f3f3 bar' ]

hexColorRegex({strict: true}).exec('foo #f3f3f3 bar')
//=> null
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Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
But before doing anything, please read the CONTRIBUTING.md guidelines.

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