Web/API/Screen/pixelDepth

Returns the bit depth of the screen. Per the CSSOM, some implementations return 24 for compatibility reasons. See the browser compatibility section for those that don't.

Syntax

let depth = window.screen.pixelDepth

Example

// if there is not adequate bit depth
// choose a simpler color
if ( window.screen.pixelDepth > 8 ) {
  document.style.color = "#FAEBD7";
} else {
  document.style.color = "#FFFFFF";
}

Specifications

Specification	Status	Comment
CSS Object Model (CSSOM) View ModuleThe definition of 'Screen.pixelDepth' in that specification.	Working Draft	Initial definition.

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
pixelDepth	Chrome Full support 40 Notes' Full support 40 Notes' Notes' Starting with version 59 this property is no longer required to always return 24.	Edge Full support 12	Firefox Full support Yes	IE ?	Opera Full support Yes	Safari Full support 6	WebView Android Full support Yes Notes' Full support Yes Notes' Notes' Starting with version 59 this property is no longer required to always return 24.	Chrome Android Full support Yes Notes' Full support Yes Notes' Notes' Starting with version 59 this property is no longer required to always return 24.	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes Notes' Full support Yes Notes' Notes' Starting with Samsung Internet 7.0 this property is no longer required to always return 24.

Legend

Full support  

Full support

Compatibility unknown  

Compatibility unknown

See implementation notes.'

See implementation notes.

See also

• Screen.colorDepth

Screen.pixelDepth by Mozilla Contributors is licensed under CC-BY-SA 2.5.