Colourful Tops

Instead of colour, one can say also a paint. For sounds we say "timbre". These names are associated with perception of various stimuli with our eyes (or ears). On the other hand, the colour depends on ingredients forming an object. In particular ingredients with clear, vivid colours are called dyes.

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The reception points in our eye register incoming light waves - which are sets of stimuli for our brain. Following further processing in the reception points these stimuli undergo transformation into sensations. Such a transformation does not follow the order of linear way. In other words, the same sensation can be created in our eye as a result of various light wave configurations.

White light can be obtained through mixing only three colours: red, green and blue. If we project these three colours onto a screen so that they cover, what we perceive is white light. By mixing these colours in proper proportions we can obtain a desired light spectrum range. That is why we call red, green and blue basic complementary colours. But if we subtract a colour, like in the print process, we have other three fundamental colours: magenta, yellow and cyan.