PostCSS Color Hex Alpha

PostCSS Color Hex Alpha lets you use 4 & 8 character hex color notation in CSS, following the CSS Color Module specification.

body {
  background: #9d9c;
}

/* becomes */

body {
  background: rgba(153, 221, 153, 0.8);
}

Usage

Add PostCSS Color Hex Alpha to your project:

npm install postcss-color-hex-alpha --save-dev

Use PostCSS Color Hex Alpha to process your CSS:

const postcssColorHexAlpha = require('postcss-color-hex-alpha');

postcssColorHexAlpha.process(YOUR_CSS /*, processOptions, pluginOptions */);

Or use it as a PostCSS plugin:

const postcss = require('postcss');
const postcssColorHexAlpha = require('postcss-color-hex-alpha');

postcss([
  postcssColorHexAlpha(/* pluginOptions */)
]).process(YOUR_CSS /*, processOptions */);

PostCSS Color Hex Alpha runs in all Node environments, with special instructions for:

Node

PostCSS CLI

Webpack

Create React App

Gulp

Grunt

Options

preserve

The preserve option determines whether 4 & 8 character hex color notation should be preserved in their original form. By default, these are not preserved.

postcssColorHexAlpha({
  preserve: true
});

body {
  background: #9d9c;
}

/* becomes */

body {
  background: rgba(153, 221, 153, 0.8);
  background: #9d9c;
}