Instructions:

1) Name the following colours aloud from up to down. Say aloud, as if there is nobody else in your room. So start from “red”:

2) Now do the same for the following colours, but try a little faster:

Very good. However, did you really name the colours? Why did you say that the upper colour is red, although it is white, as you can see here once more:

Isn’t that surprisingly difficult? A person, who cannot read, will find this test most likely much easier – of course we just guessed that you said “red”, because 99.5 % of all people say so.

BTW: It is also difficult to read in yellowish, eye tireing and insufficient bad colour rendered light. Therefore we suggest that you try clean, full spectrum daylight lamps, like Viva-Lite, in your office and at home. We believe that you will improve your reading speed – not to talk about seeing true colours!

There is a huge difference between different lamps.

Thanks to your Viva-Lite partner in Finland for providing the test!

Related posts:

1. The Colour Rendering Index (CRI)
2. How accurate is your colour perception
3. Stop Flirting & Commit : Rules of Engagement With Colour