Ishihara-style Colour Vision Check

This rapid self-test now runs in two rounds. The first pass shows standard Ishihara-inspired plates. The second repeats the same plates after applying a null band filter preset from the Moving Null Band Playground so you can compare how the enhancement changes what you see.

For each plate, type the number or letter you can see. If nothing is visible, skip the plate.

This tool is not a medical diagnosis. Please consult an eye-care professional for a clinical evaluation.

Round 1 of 2

Plate 1 of 12

Type the number or letters you can see on the plate. If nothing appears, skip the plate.

Prepare for round two

The first round is complete. You can now load a preset exported from nullband.html.

If you skip this step the second round will look identical to the first.

Load preset Drop a JSON file or tap to browse

Your results

This is not a diagnosis. If you have concerns, please consult a professional.