Color Blindness Safe Palette Checker
Generate and validate color palettes that work for all types of color blindness including protanopia, deuteranopia, and tritanopia. Ensure your color schemes are accessible and inclusive for everyone with comprehensive palette safety testing using scientific color transformation matrices.
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Complete Guide: Color Blindness Safe Palette Checker
Everything you need to know about using this tool effectively
The Color Blindness Safe Palette Generator creates color schemes that remain distinguishable for people with color vision deficiencies. It simulates how a palette appears under protanopia (red-blind), deuteranopia (green-blind), and tritanopia (blue-blind) conditions. You pick colors and check whether they stay distinct. All processing happens in the browser.
This tool applies color vision deficiency simulation matrices to your palette colors. It converts each RGB color through the appropriate CVD transformation matrix and shows the simulated result. The tool helps you choose colors that maintain sufficient contrast even under CVD conditions.
Designing accessible charts
Ensure a pie chart or bar chart remains readable for people with color vision deficiencies.
Creating accessible UI components
Choose button and status colors that are distinguishable for all users.
Building accessible data visualizations
Verify that a color-coded map or graph maintains clarity under CVD simulation.
Meeting WCAG compliance
Check that color combinations meet contrast requirements for accessibility standards.
Enter your palette colors
Add the hex codes of the colors you plan to use.
Select a CVD type
Choose protanopia, deuteranopia, or tritanopia to simulate.
Review the simulation
See how your colors appear under the selected condition and whether they remain distinct.
Adjust if needed
Modify colors that are too similar under CVD and recheck.
About 8% of men and 0.5% of women have some form of color vision deficiency.
Avoid red-green combinations as the most common CVD types affect those colors.
Use patterns, labels, or icons alongside color to convey information.
Test your palette under all three CVD types for maximum accessibility.
What types of color blindness are simulated?
The tool simulates protanopia (red-blind), deuteranopia (green-blind), and tritanopia (blue-blind). These are the three main types of color vision deficiency.
How does the simulation work?
Each color is converted through a transformation matrix that models how the affected cone cells respond differently. The output shows approximately how a person with that CVD type would perceive the color.
Is my data sent to a server?
No. All simulation happens in your browser. Nothing is transmitted.
How many colors can I test?
You can test up to 8 colors at once in your palette.
Can I fix a palette that fails the test?
Yes. The tool suggests alternative colors that maintain better distinction under CVD conditions.
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