Accessibility testing tools

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Color Contrast testing tools

Color Contrast Analyser

This tool provides two useful core functionalities:

  • pass/fail assessment against WCAG 2.0 color contrast success criteria
  • simulation of certain visual conditions, including dichromatic color-blindness and cataracts, to demonstrate how your web content appears to people with less than 20/20 vision

Contrast ratio tool by Lea Verou

This tool rates and provides contrast indication: