Colour can convey mood, describe reality or codify information. Colour can be used to make things stand out or to make them disappear. Our perception of colour depends on the pigmentation of physical surfaces as well as the brightness and character of ambient light. It also depends on the colours around it - the same colour can appear different when placed with lighter/darker colours. Colour changes meaning in different cultures - in the West, white signifies purity where as in the East it signifies death. In 1665, Isaac Newton discovered that a prism separates light into a spectrum of colours. On the colour wheel, colours next to each other are analogous - using them together provides minimal colour contrast and natural harmony (related colour temperature). Two colours opposite each other are complimentary - each colour contains no element of the other and they have opposing temperatures. The colour wheel is split into primary, secondary and tertiary colours. Attr...