Color Blindness Test
Screening only. Not a diagnosis.
Calibration Gate
For reliable screening, confirm all conditions below before starting.
Knowledge + FAQ
What is colour vision deficiency?
Colour vision deficiency means difficulty distinguishing certain colours, commonly red-green shades. It can be inherited or acquired.
Why can online results vary?
Screen brightness, night mode, blue-light filters, room lighting, tinted lenses, and zoom can all alter plate visibility.
What should I do if screening suggests deficiency?
Repeat under better conditions and consult a qualified eye specialist for confirmatory clinical testing.
Does this detect blue-yellow deficiency?
This tool mainly screens for red-green issues. Blue-yellow and other patterns need full clinical assessment.
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