WCAG Contrast checker

Checks for compliance with the contrast levels of foreground and background colors combination based on the requirements of WCAG 2.2

WCAG Contrast checker is available to install from Firefox Browser Add-ons and for download from this page. It has 4,429 active users The latest version is 3.8.4, and it was published 10 months ago.

Install from Firefox Browser Add-ons
View source code
Total download count: 0 (Only count downloads from Firefox-Stats)

All available versions

You can find the current and older versions of WCAG Contrast checker here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

Upgrade to download older versions
 8 versions available for download.

Install XPI file

  1. Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

  2. In Firefox browser, go to about:addons to open Add-ons Manager
  3. Click on , then select Install Add-on From File
  4. Select the WCAG Contrast checker ZIP file from step 1. WCAG Contrast checker is now installed on your browser.