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Ishihara Colour Test

To test your ability to differentiate between colours using these twelve Colour Test Plates, as rquired by ASME / SNT-TC-1A and other schemes, make a note of each 'Plate' number, 01, 02, 03 etc., then make a note of the number you see in the adjacent circle.

Finally, click on 'Results' to analyse your results.

Plate 01
Plate 02
Plate 03
Plate 04
Plate 05
Plate 06
Plate 07
Plate 08
Plate 09
Plate 10
Plate 11
Plate 12

Ishihara Colour Test - Results

Plate 1
Both the normal and the colour-blind read the figures (12) alike.

Plate 2
The normal read the figure for 6. The red-green-blind read it for 5. The total colour-blind can hardly read it.

Plate 3
The normal read the figure for 8. The red-green-blind read it for 3. The total colour-blind can hardly read it.

Plate 4
The normal read the figure for 5. The red-green-blind read it for 2. The total colour-blind can hardly read it.

Plate 5
The normal read the figure for 3. The red-green-blind read it for 5. The total colour-blind can hardly read it.

Plate 6
The normal read the figures for 15. The red-green-blind read them for 17. The total colour-blind can hardly read them.

Plate 7
The normal read the figures for 74. The red-green-blind read them for 21. The total colour-blind can hardly read them.

Plate 8
The normal read the figure for 2, but the colour-blind can hardly read it.

Plate 9
The normal read the figure for 6, but the colour-blind can hardly read it.

Plate 10
The normal read the figures for 45, but the colour-blind can hardly read them.

Plate 11
The normal read the figures for 97, but the colour-blind can hardly read them.

Plate 12
The normal read the figure for 5, but the colour-blind can hardly read it.


This test was designed by Dr. Shinobu Ishihara.

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