Simulate color blindness effects. Test your designs for accessibility with different types of color vision deficiencies.
Simulate various types of color blindness including protanopia, deuteranopia, and tritanopia.
Adjust the severity of color blindness simulation from mild to complete color vision deficiency.
Upload and test your images, designs, and interfaces for color accessibility compliance.
Get professional tips and recommendations for improving color accessibility in your designs.
Red-blindness. Cannot distinguish between red and green colors. Affects about 1% of males.
Red cones missing
Green-blindness. Cannot distinguish between red and green colors. Most common type.
Green cones missing
Blue-blindness. Cannot distinguish between blue and yellow colors. Very rare.
Blue cones missing
Complete color blindness. Sees only in shades of gray. Extremely rare.
No color vision
Ensure sufficient contrast between text and background colors for readability.
Use shapes, patterns, and text labels in addition to color to convey information.
Regularly test your designs with color blindness simulators to ensure accessibility.
Design for the widest possible audience including users with various color vision deficiencies.
Enter your colors or upload an image, then select a colorblindness type (protanopia, deuteranopia, tritanopia). The tool shows exactly how your design appears to users with that vision deficiency.
The tool simulates protanopia (red-blind), deuteranopia (green-blind), tritanopia (blue-blind), and achromatopsia (total color blindness). These cover the most common color vision deficiencies.
8% of men and 0.5% of women have color vision deficiencies. Simulating helps ensure your design is accessible to all users, not just those with full color vision. It prevents usability issues.
Yes! Upload your palette or enter multiple colors. The simulator shows how all colors appear together, helping you identify problematic color combinations that may be indistinguishable to colorblind users.
Use higher contrast, add patterns or icons alongside colors, or adjust hues to create more distinction. The simulator helps you identify which colors need adjustment before finalizing your design.
Yes! Upload images, screenshots, or UI mockups to see how they appear to colorblind users. This is essential for testing websites, apps, and graphics before launch.