Annotated list of Accessibility Assessment Tools

offers suggestions if your colors fail contrast

Offers suggestions for how to fix colors that fail the contrast ratio

Allows for the selection of up to 5 colors to create a palate for comparison, definitely faster for comparing combinations of multiple colors against one another

Allows for defining and labeling any amount of colors to create a palette for comparison. Produces a (very large) URL for sharing your palette.

Is connected to resources for WCAG success criterion for 1.4.3 and for 1.4.6

provides data about relative luminance

* Downloadable tool * Indicates if a color contrast passes AA text contrast minimum, AAA text contrast minimum, and AA non-text contrast minimum

* Has a color dropper feature * Shows what this looks like for normal text, large text, and graphics * Linked to other tools and resources

Has a table of colors displayed with ratio numbers to provide a visual example

Explains what Semantics are and why they are important

This one is a huge favorite. Runs tests and generates reports on what’s broken, the degree of severity, and offers solutions on how to fix.