Is an aspect of colourChoices of colour and the relationships between colours have a huge influence on how a piece or art or design looks and feels and the emotions it provokes. Colour is made up of different aspects. The most useful terms used to describe these aspects are probably: hue, tone, saturation, complementary, analogous, tint, shade, primary and secondary. concerned with its purity, richness or brilliance. Saturation can be high intensity or low intensity; it is sometimes referred to in terms of its brightness or dullness.