Colour contrast checker to check for accessibility issues.

Use TPGi's free colour contrast checker to optimize your content - including text and visual elements - for individuals with color-blindness or low vision impairments.

An open-source, automated tool to help you improve the quality of web pages. You can run it on any web page, public or requiring authentication.

A tool for making custom branded color palettes for web and UI design that are built from the ground up to meet WCAG contrast accessibility guidelines

aDesigner is a disability simulator that helps designers ensure that their content and applications are accessible and usable by the visually impaired.

Human-first Accessibility meets AI—Powered action