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@media.prefers-contrast

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The prefers-contrast CSS media feature is used to detect if the user has requested that the web content is presented with a higher (or lower) contrast.

Syntax

no-preference: Indicates that the user has made no preference known to the system. This keyword value evaluates as false in a Boolean context.
more: Indicates that user has notified the system that they prefer an interface that has a higher level of contrast.
less: Indicates that user has notified the system that they prefer an interface that has a lower level of contrast.

User preferences

Various operating systems do support such preferences and user agents are likely to rely on the settings provided by the operating system.

Examples

This example has an annoying low contrast by default.

HTML

<div class="contrast">low contrast box</div>

CSS

.contrast {
  width: 100px;
  height: 100px;
  outline: 2px dashed black;
}

@media (prefers-contrast: high) {
  .contrast {
    outline: 2px solid black;
  }
}

Result

Specifications

Specification	Status	Comment
Media Queries Level 5 The definition of 'prefers-contrast' in that specification.	Editor's Draft	Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
`prefers-contrast` media feature	No	No	80 Disabled 80 Disabled Disabled From version 80: this feature is behind the `layout.css.prefers-contrast.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	No	No	No

	Mobile
	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`prefers-contrast` media feature	No	No	No	No	No	No