Simulate how your design appears to color-blind users. Upload an image to preview Protanopia, Deuteranopia, Tritanopia, and Achromatopsia.
Color blindness types
- Protanopia (~1% of males) โ no red cones
- Deuteranopia (~1% of males) โ no green cones
- Tritanopia (rare) โ no blue cones
- Achromatopsia (very rare) โ total color blindness, sees only grayscale
Use cases
- UI/UX accessibility audits
- Data viz / chart color choices
- Brand color verification
- WCAG 1.4.1 compliance
FAQ
How does this simulation work?
Uses standard linear matrix transformations published by researchers (Brettel, Viรฉnot, etc.) on RGB pixels.
How accurate is it?
Good approximation. Real perception varies between individuals.
Server upload?
No, fully client-side Canvas processing.
Free for commercial?
Yes.