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👁️ Color Vision Self-Test

Ishihara-style online self-test: 24 programmatically generated pseudoisochromatic plates automatically classify red / green / blue channel anomaly patterns and severity. Quick (10 plates) and standard (24 plates) modes; mobile-optimized; bilingual. Browser-local, no login, default no ad scripts, default no third-party analytics — results are not uploaded by the tool. For reference and self-understanding only; not a medical diagnosis. Consult an eye-care professional if you have concerns.

Disclaimer

This is an at-home self-test inspired by Ishihara-style color plates, generated locally in your browser. It offers a preliminary indication of whether your color vision shows patterns consistent with red, green, or blue channel deficiency.

This is not a medical diagnosis. Results are influenced by screen temperature, brightness, ambient light, device color gamut, and calibration. For reference only. If you have concerns about your color vision, please consult an eye-care professional for standardized testing (Ishihara printed plates, Farnsworth D-15, anomaloscope).

Privacy: All plate generation, scoring, and result rendering runs entirely in your browser. No data is uploaded. No login, default no ad scripts, default no third-party analytics. If you opt in to "Save this result locally", it is written only to your device's localStorage and can be cleared at any time.

Start the test

Mode
Local No login Default no ad scripts Default no third-party analytics

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Free online Ishihara-style color vision self-test: 24 programmatically generated pseudoisochromatic plates. Automatically classifies red / green / blue channel anomaly patterns and severity. Browser-local, no login, default no ad scripts, default no third-party analytics — results are not uploaded by the tool. Mobile-optimized, bilingual, keyboard-accessible. For reference and self-understanding only; not a medical diagnosis. Consult an eye-care professional if you have color-vision concerns.