Education
About color vision deficiency
Color vision deficiency — commonly called color blindness — means that some colors look different, or harder to tell apart, than they do to people with typical color vision. It's usually inherited and lifelong, and for most people it's not a disease so much as a variation in how the eye's color receptors work.
How common is it?
Roughly 1 in 12 men and 1 in 200 women live with some form of color vision deficiency. That's around 300 million people worldwide.
The common types
The three most talked-about categories affect different cone cells in the retina:
- Deutan — reduced sensitivity to green light. The most common form.
- Protan — reduced sensitivity to red light. Reds can look darker and muddier.
- Tritan — reduced sensitivity to blue light. Much rarer than the two above.
Each type ranges from mild to strong, and many people have never been formally tested. If you've ever been told your outfit "clashes" when it looked fine to you, that's the everyday reality.
Why matching clothes is hard
Clothes rarely come in pure colors. A navy jacket might read as black; a burgundy shirt might read as brown; olive and khaki can be indistinguishable. Lighting makes it worse — the same pair of trousers can shift dramatically between a bathroom mirror and outdoor daylight.
How ColorMatch Assist helps
The app treats your camera as a second pair of eyes. It reads the dominant colors in your outfit and gives you a plain-language verdict — not a color-theory lecture — so you can head out with confidence.
It's a tool, not a medical device. It doesn't diagnose color vision deficiency and it isn't a substitute for advice from an eye-care professional.