Web/API/Screen/colorDepth

The Screen.colorDepth read-only property returns the color 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

bitDepth = window.screen.colorDepth;

Example

// Check the color depth of the screen
if ( window.screen.colorDepth < 8) {
  // Use low-color version of page
} else { 
  // Use regular, colorful page
}

Specification

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

Browser compatibility

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
`colorDepth`	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 40 Notes' Full support 40 Notes' Notes' Starting with version 59 this property is no longer required to always return 24.	Chrome Android Full support 40 Notes' Full support 40 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 4.0 Notes' Full support 4.0 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.