Color Blindness- Ishihara


  • Sit approximately 75cm from your monitor, with each circle set at eye level.
  • Preferably have mild natural light and no glare on your screen. Interior lights and glare can alter the color of the pictures.
  • Attempt to identify the hidden number or line within 3 seconds. Write down your answer. Slides will automatically change every 5 seconds.
  • Upon clicking, the answer will be revealed along with an analysis explaining your condition if you got it wrong.
  • Continue to the next Ishihara test, Complete them all to help gauge your color blindness severity.
  • Plates 1 – 10 each contain a number, plates 11 – 15 contain one or two wiggly lines. To pass each test you must identify the correct number, or correctly trace the wiggly lines.
  • Plate 1 and 15 are control tests – people with normal vision and all forms of color blindness should be able to distinguish these. These two plates are particularly useful for identifying cheeky behavior when testing children!

ishihara Test