The Juicy Studio Colour Contrast Firefox Extension has been updated to match the latest version of the draft Web Content Accessibility Guidelines 2.0, and includes a patch that checks for contrast for
Author: Gez Lemon
One of the updates from the draft Web Content Accessibility Guidelines 2.0 is a change to the algorithm to determine whether the contrast between foreground and background colours is sufficient. As well as updating the algorithm itself, the thresholds have changed to consider large and bold text (at least 18 point or 14 point bold). I've updated the Colour Contrast Firefox Extension to incorporate the changes.
The extension only checked the colour contrast between foreground and background colours on text nodes, so didn't include empty elements, such as
input for form controls. Maurice Lanselle contacted me with a patch to include
input elements whose type is one of
password. The patch is included in this update; many thanks to Maurice.