@csstools/postcss-color-mix-function is a PostCSS plugin that allows you to use the CSS `color-mix()` function in your stylesheets. This function enables you to mix two colors together, which can be useful for creating color themes, gradients, and other visual effects.

What are @csstools/postcss-color-mix-function's main functionalities?

Mixing Two Colors

This feature allows you to mix two colors together using the `color-mix()` function. In this example, red and blue are mixed in equal proportions to produce a purple color.

/* Input CSS */
.example {
  color: color-mix(in srgb, red 50%, blue);
}

/* Output CSS */
.example {
  color: #800080;
}

Mixing Colors with Different Percentages

This feature allows you to specify different percentages for each color in the mix. In this example, red is given a 70% weight and blue a 30% weight, resulting in a reddish-purple color.

/* Input CSS */
.example {
  color: color-mix(in srgb, red 70%, blue 30%);
}

/* Output CSS */
.example {
  color: #b3004d;
}

Using Different Color Spaces

This feature allows you to mix colors in different color spaces. In this example, the colors are mixed in the LCH color space, which can produce different results compared to the default sRGB color space.

/* Input CSS */
.example {
  color: color-mix(in lch, red 50%, blue);
}

/* Output CSS */
.example {
  color: #a2007d;
}

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Readme

Source

PostCSS Color Mix Function

npm install @csstools/postcss-color-mix-function --save-dev

PostCSS Color Mix Function lets you use the color-mix() function following the CSS Color 5 Specification.

.purple_plum {
	color: color-mix(in lch, purple 50%, plum 50%);
}

/* becomes */

.purple_plum {
	color: rgb(175, 92, 174);
}

[!NOTE] We can not dynamically resolve var() arguments in color-mix(), only static values will work.

Usage

Add PostCSS Color Mix Function to your project:

npm install postcss @csstools/postcss-color-mix-function --save-dev

Use it as a PostCSS plugin:

const postcss = require('postcss');
const postcssColorMixFunction = require('@csstools/postcss-color-mix-function');

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

PostCSS Color Mix Function runs in all Node environments, with special instructions for:

Options

preserve

The preserve option determines whether the original notation is preserved. By default, it is not preserved.

postcssColorMixFunction({ preserve: true })

.purple_plum {
	color: color-mix(in lch, purple 50%, plum 50%);
}

/* becomes */

.purple_plum {
	color: rgb(175, 92, 174);
	color: color-mix(in lch, purple 50%, plum 50%);
}

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Package last updated on 07 Jul 2024

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