Which colours do you need to mix to get purple?

Explanation

There are three primary colours: blue, yellow and red. These can then be mixed to produce all other colours. If you mix red and yellow, e.g., you get orange. Red and blue mixed produces purple, and blue and yellow becomes green. White and black are not distint colours as such, but white makes other colours lighter whereas black makes them darker. So if you mix red and white, you get pink.