Medical Disclaimer

ColorVision is a screening tool, not a clinical diagnostic service. The tests and tools provided on this website — including the Ishihara test, Farnsworth-Munsell test, D-15 test, and colour blindness simulator — are designed for general information and screening purposes only.

Not a substitute for professional advice. Results from these online tests should not be used as a basis for medical decisions, employment decisions, or legal purposes. Only a qualified eye care professional (optometrist or ophthalmologist) can provide a formal diagnosis of colour vision deficiency.

Technical limitations. Online colour vision tests are affected by screen calibration, screen type, ambient lighting, and other factors that are not present in clinical testing with standardised printed materials. These variables can affect accuracy.

If you are concerned about your colour vision, we encourage you to consult an eye care professional in your area for a comprehensive examination using standardised clinical instruments.