Adobe's UX design tool. Basically their answer to Sketch.Visit site »
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.
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.
This is a tool to help designers build color palettes with combinations that conform with accessibility standards.
The fastest, smoothest, most precise vector graphic design software available for Mac, Windows and iPad.
Design for the color impaired. A free color blindness simulator for Windows, Mac and Linux.
Empowering designers with beautiful and accessible color palettes based on WCAG Guidelines of text and background contrast ratios.
Create, share, and apply color palettes to your UI, as well as measure the accessibility level of any color combination.
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.
Use the Colorblind Colorlab to select safe colors earlier in the design process.
Create beautiful, accessible, and adaptive color systems using contrast-ratio based generated colors.