0b10 / hex-to-rgba

Converts CSS hexadecimal color codes to rgba().

hex-to-rgba turns an old-fashioned css hex color value string into an rgba() string.

Optionally pass in an alpha value. The passed alpha value will override any alpha value from 4- or 8-digit hexes. If you don't pass in an alpha value at all, we will default to an alpha value of 1 (completely opaque).

Supports 3-, 4-, 6- and 8-digit hex values with or without a leading hash.

Installation

$ npm install --save hex-to-rgba

or

$ yarn add hex-to-rgba

Usage

import hexToRgba from 'hex-to-rgba';

// Or if you're so inclined:
// var hexToRgba = require("hex-to-rgba");

hexToRgba('112233'); // "rgba(17, 34, 51, 1)"
hexToRgba('#112233'); // "rgba(17, 34, 51, 1)"
hexToRgba('112233', '0.5'); // "rgba(17, 34, 51, 0.5)"
hexToRgba('#112233', 0.75); // "rgba(17, 34, 51, 0.75)"

hexToRgba('11223344') // "rgba(17, 34, 51, 0.27)"
hexToRgba('#11223344') // "rgba(17, 34, 51, 0.27)"
hexToRgba('11223344', '0.5') // "rgba(17, 34, 51, 0.5)"
hexToRgba('#11223344', 0.75) // "rgba(17, 34, 51, 0.75)"

hexToRgba('123'); // "rgba(17, 34, 51, 1)"
hexToRgba('#123'); // "rgba(17, 34, 51, 1)"
hexToRgba('123', 0.2) // "rgba(17, 34, 51, 0.2)"
hexToRgba('#123', 0.2) // "rgba(17, 34, 51, 0.2)"

hexToRgba('1234'); // "rgba(17, 34, 51, 0.27)"
hexToRgba('#1234'); // "rgba(17, 34, 51, 0.27)"
hexToRgba('1234', 0.5) // "rgba(17, 34, 51, 0.5)"
hexToRgba('#1234', 0.75) // "rgba(17, 34, 51, 0.75)"

Signature

hexToRgba(hex, a=1)

Returns an rgba() string. (examples: 'rgba(11, 22, 33, 1)', 'rgba(11, 22, 33, 0.5)')

Parameters

• hex: The hex color value to convert to rgba. (examples: '123456', '#123456', '123', '#123')
• a: An alpha value to apply. (optional, default: 1) (examples: '0.5', 0.25)

Contributing

I appreciate your issues and PRs on Github!

Testing

yarn build && yarn test

Releasing

This project uses np.

1. Make sure your changes are in master
2. Run yarn release
3. Follow the interactive release guide

Changelog

See the releases page on GitHub.