PostCSS Color Hex Alpha lets you use 4 & 8 character hex color notation in CSS, following the CSS Color Module specification.
```pcss body { background: #9d9c; }
/ becomes /
body { background: rgba(153, 221, 153, 0.8); } ```
Add PostCSS Color Hex Alpha to your project:
bash
npm install postcss-color-hex-alpha --save-dev
Use PostCSS Color Hex Alpha to process your CSS:
```js const postcssColorHexAlpha = require('postcss-color-hex-alpha');
postcssColorHexAlpha.process(YOUR_CSS /, processOptions, pluginOptions /); ```
Or use it as a PostCSS plugin:
```js 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 | | --- | --- | --- | --- | --- | --- |
The preserve option determines whether 4 & 8 character hex color notation
should be preserved in their original form. By default, these are not preserved.
js
postcssColorHexAlpha({
preserve: true
});
```pcss body { background: #9d9c; }
/ becomes /
body { background: rgba(153, 221, 153, 0.8); background: #9d9c; } ```