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How to Design Websites by Alan Pipes

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Colour theory

In transmitted light (including computer screens), the three primary colours are red, green and blue. In colours reflected from pigments, the three primary colours are red, yellow and blue. Mix any two, and you have the secondary colours: orange, green and purple for pigments; cyan, yellow and magenta for transmitted colours – colours that designers for print know well. Here we are more interested in how colours interact in colour schemes. No matter how they were created, placing red next to green, say, will have the same effect on the brain whether seen on screen or on the printed page. We know from colour psychology that the brain accepts four colours – red, yellow, green and blue – as primaries, and this is reflected in the composition ...

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