Colorable is a web-based tool that evaluates color contrast ratios between text and background colors to verify WCAG accessibility compliance. It displays real-time contrast measurements and accessibility ratings (AAA, AA, fail) as you adjust text hue, saturation, and lightness values.
The tool helps designers and developers ensure their color choices meet accessibility standards without relying on external validators. It combines a visual contrast checker with an interactive color picker interface, letting you experiment with different color combinations and immediately see whether they pass accessibility thresholds.
Adjust the hue, saturation, and lightness sliders for your text color and background color. The tool immediately calculates the contrast ratio and displays it alongside a WCAG rating (AAA, AA, or fail). Use the Reverse button to swap text and background colors, or click Random to generate new color combinations and explore compliant options.
Colorable suits anyone building digital products who needs a quick, free way to check color accessibility without leaving their browser. It requires no installation, no sign-up, and no complex configuration—just load the page and start testing. The tool is ideal for designers and developers who want instant feedback on contrast compliance during the design phase.
FREEDisplays the numeric contrast ratio between two colors and returns a WCAG accessibility rating (AAA, AA, or fail).
Adjusts hue, saturation, and lightness sliders independently for both text and background colors.
Shows real-time text rendering against the selected background to visualize contrast before use.
Swaps the text and background colors instantly to test both color combinations.
Creates random color combinations so users can explore and discover compliant color pairs.
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| Starting price | — | Free | Free | Free |
| Pricing model | unknown | Free | Free | Free |
| Platforms | Web | Web | Web | Web |
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