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.

mcp-axe is a MCP-compatible plugin for automated accessibility scanning

Professional Accessibility Testing Platform No more hiding from accessibility.

Allows you to easily check the accessibility of any web page directly in Google Chrome, so you can immediately identify issues based on the latest ACT (Accessibility Conformance Testing) rules – with instant feedback and recommendations.

TPGi’s on-demand single-page accessibility testing tool. Use it to remediate failures surfaced in ARC Monitoring scans or as a QA tool.

A website for getting different information for colors (different formats, complementary color) , especial a color blindness simulator.