Quick color blindness test with instant results — 40 plates, 18 questions.

ColorCheck turns a clinical concern into a 30-second browser check. The warm amber palette is an unusual choice for a medical tool, and it works — the orange-on-cream feels approachable rather than clinical, which matters when you're asking people to confront a perceptual difference they may have lived with for decades. The promise is honest too: an estimate, not a diagnosis.