Web/CSS/@media/color-index

The color-index CSS media feature can be used to test the number of entries in the output device's color lookup table.

Syntax

The color-index feature is specified as an <integer> value representing the number of entries in the output device's color lookup table. (This value is zero if the device does not use such a table.) It is a range feature, meaning that you can also use the prefixed min-color-index and max-color-index variants to query minimum and maximum values, respectively.

Examples

Basic example

HTML

<p>This is a test.</p>

CSS

p {
  color: black;
}

@media (color-index) {
  p {
    color: red;
  }
}

@media (min-color-index: 15000) {
  p {
    color: #1475ef;
  }
}

Custom stylesheet

This HTML will apply a special stylesheet for devices that have at least 256 colors.

<link rel="stylesheet" href="http://foo.bar.com/base.css" />
<link rel="stylesheet" media="all and (min-color-index: 256)" href="http://foo.bar.com/color-stylesheet.css" />

Specifications

Specification	Status	Comment
Media Queries Level 4The definition of 'color-index' in that specification.	Candidate Recommendation	The value can now be negative, in which case it computes to false.
Media QueriesThe definition of 'color-index' in that specification.	Recommendation	Initial definition. The value must be nonnegative.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
color-index media feature	Chrome Full support 29	Edge Full support 79	Firefox No support No	IE No support No	Opera Full support 16	Safari Full support 8	WebView Android Full support ≤37	Chrome Android Full support 29	Firefox Android No support No	Opera Android Full support 16	Safari iOS Full support 8	Samsung Internet Android Full support 2.0

Legend

Full support  

Full support

No support  

No support

color-index by Mozilla Contributors is licensed under CC-BY-SA 2.5.