postcss-lab-function

Use lab() and lch() color functions in CSS

Usage no npm install needed!

<script type="module">
  import postcssLabFunction from 'https://cdn.skypack.dev/postcss-lab-function';
</script>

README

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PostCSS Lab Function lets you use lab and lch color functions in CSS, following the CSS Color specification.

:root {
  --firebrick: lab(40% 56.6 39);
  --firebrick-a50: lch(40% 68.8 34.5 / 50%);
}

/* becomes */

:root {
  --firebrick: rgb(178, 34, 34);
  --firebrick-a50: rgba(178, 34, 34, .5);
}

Usage

Add PostCSS Lab Function to your project:

npm install postcss postcss-lab-function --save-dev

Use it as a PostCSS plugin:

const postcss = require('postcss');
const postcssLabFunction = require('postcss-lab-function');

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

PostCSS Lab Function 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 the original functional color notation is preserved. By default, it is not preserved.

postcssLabFunction({ preserve: true })
:root {
  --firebrick: lab(40% 56.6 39);
  --firebrick-a50: lch(40% 68.8 34.5 / 50%);
}

/* becomes */

:root {
  --firebrick: rgb(178, 34, 34);
  --firebrick: lab(40% 56.6 39);
  --firebrick-a50: rgba(178, 34, 34, .5);
  --firebrick-a50: lch(40% 68.8 34.5 / 50%);
}