What’s that color above? If you’re English or American, your answer would probably be sky blue, or a light turquoise. But in Japanese it would be called mizu, which translates as “water”. The rest of ...

The human eye can physically perceive millions of colours. But we don’t all recognise these colours in the same way. Some people can’t see differences in colours – so called colour blindness – due to ...

We have many idiomatic expressions involving the whole range of colours in English. In answering your question, Michal, we will have a look today at just three colours: red, white and blue (the ...

The principles of colour perception, explained in terms of the interactions between a light source, an object and an observer. Fundamental aspects of light sources. The ways in which an object ...

Although the chemistry of autumn colours is well understood, there is an ongoing and lively debate among scientists about why trees evolved their vivid autumn colours in the first place. Driving north ...

The amount of information reaching our sensory organs every second would be overwhelming if it were not for our ability to categorize it. Colour perception is a good example of this phenomenon. When ...