Color Blindness Simulator

Test how your colors and designs appear to people with different types of color vision deficiencies. About 8% of men and 0.5% of women have some form of color blindness.

Image Simulation

Select Type

About Protanopia (Red-Blind)

Missing or non-functional L-cones (red receptors). Affects about 1% of males. Difficulty distinguishing red from green.

Accessibility Tips:

  • Avoid using only red and green to convey information
  • Use patterns, textures, or labels in addition to color
  • Ensure sufficient contrast between colors
  • Use blue and yellow as alternative color pairs

Understanding Color Blindness

Color blindness (color vision deficiency) is a condition where a person's ability to see colors is reduced. It's usually genetic and affects approximately 8% of males and 0.5% of females worldwide.

Red-Green Color Blindness

The most common type, affecting about 99% of color blind people. Includes Protanopia and Deuteranopia, making it difficult to distinguish between reds and greens.

Blue-Yellow Color Blindness

Tritanopia is extremely rare, affecting less than 1% of color blind people. Makes it difficult to distinguish between blues and yellows.

Complete Color Blindness

Achromatopsia is the rarest form, where people see everything in shades of gray. Affects approximately 1 in 33,000 people.

Why It Matters

Designing with color blindness in mind ensures your content is accessible to everyone, improving user experience and meeting accessibility standards.

How to Use This Tool

  1. Select a color blindness type from the options above
  2. Test a single color using the color picker or hex input
  3. View how common color palettes appear to people with different types of color vision
  4. Upload an image to see how your design appears with simulated color blindness
  5. Download the simulated image for reference or sharing with your team
  6. Use the accessibility tips to improve your designs for better inclusivity