Blue is the only colour which maintains its own character in all its tones. It will always stay blue. Blue is considered one of the additive primary colours. The English language commonly uses “blue” to refer to any colour from navy blue to cyan.

One of the most common colours chosen as a favourite, is the colour blue. It is favoured by both men and women of all ages. However, traditionally, men have a much stronger preference for blue than women. It may be the calming effect of the colour that makes it popular to both sexes. However, it could also be the association of some shades of blue with authority figures, as well as the correlation we place between intelligence and stability with the colour blue.