Protanopia
Protanopia makes reds look darker and close to greens and browns. Here is how common it is, which colors get confused and a simulator set to protanopia.
- Cone affected
- Red (L) cones missing
- Group
- Red-green
- How common
- About 1% of men (Birch 2012)
- Milder form
- Protanomaly
See a photo with protanopia
See it as
Tools for color blind eyes
Tap the original photo to pick the color to find.
- reddiagonal stripes
- orangeback stripes
- yellowvertical lines
- greendots
- bluehorizontal lines
- purplegrid
- pinkrings
- brownchecks
JPG, PNG, WebP, AVIF or HEIC. The photo never leaves this device.
Colors that look alike with protanopia
- Vivid Red and Deep Green
- Strong Pink and Brilliant Bluish Green
- Moderate Reddish Orange and Vivid Green
- Vivid Greenish Blue and Deep Purplish Pink
- Dark Reddish Orange and Deep Yellowish Green
- Moderate Orange and Vivid Yellowish Green
Each pair is far apart for typical color vision (ΔE 25 or more) but close to identical after simulation (ΔE under 3). Computed from the ISCC-NBS color names.