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PostCSS Gray PostCSS

NPM Version CSS Standard Status Build Status Support Chat

PostCSS Gray lets you use the gray() color function in CSS, following the outdated version of CSS Color Module Level 4 specification (05 November 2019).

⚠️ gray() has been removed from Color Module Level 4 specification.

body {
  background-color: gray(100);
  color: gray(0 / 90%);
}

/* becomes */

body {
  background-color: rgb(255,255,255);
  color: rgba(0,0,0,.9);
}

Usage

Add PostCSS Gray to your project:

npm install postcss postcss-color-gray --save-dev

Use PostCSS Gray to process your CSS:

import postcssGray from 'postcss-color-gray';

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

Or use it as a PostCSS plugin:

import postcss from 'postcss';
import postcssGray from 'postcss-color-gray';

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

PostCSS Gray runs in all Node environments, with special instructions for:

Node Webpack Create React App Gulp Grunt

Options

preserve

The preserve option determines whether the original gray() function should be preserved or replaced. By default, the gray() function is replaced.

By setting preserve to true, the original gray() function is preserved.

postcssGray({ preserve: true });
body {
  background-color: gray(100);
  color: gray(0 / 90%);
}

/* becomes */

body {
  background-color: gray(100);
  background-color: rgb(255,255,255);
  color: gray(0 / 90%);
  color: rgba(0,0,0,.9);
}