As you are all aware, the company is in the throes of recruiting a new materials controller and, as the successful candidate will be having to check garment colours, part of the interview will be a colour blindness test, as I indicated in the advertisement.

Some of the plates from the Ishihara Colour Blindness tests. Click on image to enlarge.

As a result of my searches for a suitable Ishihara Colour Blindness Test, I came across a very useful blog posting which I would recommend to you. This test allows you to check your own sight quickly and easily and I will be using some of the images contained therein for my interviews.

An interesting concept that I also discovered during my investigations was a Reverse-Ishihara plate – in other words an image that would only show a number if you are colour blind, and only show dots if your sight is normal. Unfortunately, I don’t know what the image should show, as no answer was given!

If there is anyone, therefore, who is colour blind and can see a number or message on the image below, can you please tell me what it is? This is frustrating … I now know what it must be like to be colour blind!

A Reverse Ishihara plate. If your eyesight is normal, you should just see dots. If you are colourblind you should see a number (I think), but what is it?