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Ishihara plates are a long-used color-vision reference. Check eight of them on NUNBIT, then choose the view you'll use for photo comparisons.
Dr. Shinobu Ishihara created these color-vision reference plates; the 1920 originals remain public domain. Numbers are hidden in dot patterns, and how easily you can read them offers a light-touch look at red–green color differences.
Screen brightness, device color settings, and image quality can all change the result. Online plates are a reference, not a clinical exam — an eye-care professional can give you an accurate assessment.
Try it now
Use eight public-domain Ishihara plates to get a light-touch look at red–green differences, then carry that straight into choosing a view for photo comparisons.
Check eight platesNo — treat it as a reference only, since screen brightness and color settings can change the result. An eye-care professional can give you an accurate assessment.
NUNBIT uses eight plates, so it stays quick.
Your result stays on this device. Nothing is sent to a server.
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