Color Blindness Simulator
Simulate how your images look to people with color blindness online for free. Test for protanopia, deuteranopia, tritanopia, and more.
Runs entirely in your browser — files never uploaded
How to use Color Blindness Simulator
- 1. Upload image. Select any image — a design mockup, photo, or chart.
- 2. Pick a type. Choose between protanopia, deuteranopia, tritanopia, or achromatopsia.
- 3. Compare. See original vs simulated side by side to check accessibility.
FAQ
How accurate is this?
We use standard color confusion matrices. Results are approximate but useful for accessibility testing.
Who should use this?
Designers, developers, and anyone who wants to ensure their visuals are accessible to people with color vision deficiency.
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