Color Tool
Create, share, and apply color palettes to your UI, as well as measure the accessibility level of any color combination.
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Accessible Colours
Accessible Colours
We evaluate your color combination using the WCAG 2.0 guidelines for contrast accessibility. If your combination does not meet the guidelines, we find the closest accessible combination by modifying the color lightness.
Accessible brand colors
Accessible brand colours
This tool shows you how ADA compliant your colors are in relation to each other. By adding your brand’s colors on the right, you can generate a chart to see how they can be used together for accessibility, and find similar colors that work better.
Accessible color palette builder
Accessible color palette builder
This is a tool to help designers build color palettes with combinations that conform with accessibility standards.
Button contrast checker
Aditus
Enter your domain and we test if your buttons have enough contrast and are compliant with WCAG 2.1.
Color Oracle
Design for the color impaired. A free color blindness simulator for Windows, Mac and Linux.
Color Safe
Colorsafe
Empowering designers with beautiful and accessible color palettes based on WCAG Guidelines of text and background contrast ratios.
Colorable
Colorable
Take a set color palette and get contrast values for every possible combination – useful for finding safe color combinations with predefined colors and includes pass/fail scores for the WCAG accessibility guidelines.
Colorblind Web Page Filter
Toptal
Use the Colorblind Colorlab to select safe colors earlier in the design process.
Leonardo
Leonardo
Create beautiful, accessible, and adaptive color systems using contrast-ratio based generated colors.
