MDN’s new design is in Beta! A sneak peek:

Returns the bit depth of the screen. Per CSSOM View, the value is always 24, for compatibility reasons.


depth = window.screen.pixelDepth


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


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

See also

Document Tags and Contributors

 Contributors to this page: cvrebert, teoli, chitra_lakhotia, ethertank, Sheppy, Mgjbot, Gor1
 Last updated by: cvrebert,