README.md

Contrast-Finder-Firefox

This is Tanaguru Contrast-Finder for Firefox

https://addons.mozilla.org/en-US/firefox/addon/tanaguru-contrast-finder/

This addon speeds and eases the use of Tanaguru Contrast-Finder to find good color contrast by selecting directly in the web page the element whom color you want to change.

This helps you in satisfying web accessibility (a11y) tests on contrasts:

• WCAG Success Criteria 1.4.3
• AccessiWeb criteria 3.3
• RGAA test 2.5 (in french)

Documentation

All documentation is in the wiki

Screenshots

1) Opening the sidebar in Firefox

2) Tanaguru Contrast-Finder's sidebar

3) Activate Element selector

4) while hovering any element, contrast is automatically computed. This one is good.

5) This text's contrast is not sufficient. Let's click to select it.

6) Choose which color to modify (foreground / background), and click the button "Find valid colors".

This makes Contrast-Finder computing possible colors and by the way brings you to Contrast-Finder website .

7) Contrast-Finder offers a set of valid colors for contrast

Keyboard usage

Focus to a given text, then press the "context menu" key, choose which color (background / foregound) to modify.