👁️Color Blindness Simulator

See how your designs look to people with different types of color blindness.

Click or drag an image here

About Color Blindness Simulator

The Color Blindness Simulator applies real-time visual filters to any uploaded image or design to simulate how it appears to people with protanopia, deuteranopia, tritanopia, and other forms of color vision deficiency. Use it to make accessibility-informed design decisions and ensure your visuals communicate effectively to all users.

How to Use Color Blindness Simulator

1
Upload your image or screenshot
Drag and drop or click to upload a screenshot of your design, website, chart, or any visual you want to test.
2
Select a color vision type
Click through the different color blindness modes (protanopia, deuteranopia, tritanopia, etc.) to see how the image appears to affected users.
3
Adjust your design based on results
Note any problematic color combinations where information is lost and update your design to use accessible contrast and color differentiation.

Common Use Cases

UI/UX designers testing color schemes for accessibility compliance
Data visualization teams ensuring charts are readable by color-blind users
Marketing teams evaluating whether brand colors work for all audiences
Developers conducting accessibility audits before product launches

Frequently Asked Questions

What types of color blindness does the simulator support?

The tool simulates protanopia (red-blind), deuteranopia (green-blind), tritanopia (blue-blind), achromatopsia (complete color blindness), and several partial variants of each.

Can I test my website or UI design with this tool?

Yes — upload a screenshot of your design or website and cycle through the different color blindness modes to evaluate contrast and color differentiation for affected users.

How many people are affected by color blindness?

Approximately 8% of men and 0.5% of women have some form of color vision deficiency, making accessible color design important for reaching the broadest possible audience.

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