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/DOM

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

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";
}

Specification

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes)[1] ? ? (Yes)[1] ?
Feature Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support (Yes)[1] (Yes)[1] ? ? ? (Yes)[1] ?

[1] Beginning with Chrome 59/Opera 46 this property is no longer required to return 24.

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/screen/pixelDepth