A colour wheel, based on red, yellow and blue, is traditional in the field of art. Sir Isaac Newton developed the first circular diagram of colours in 1666. Since then, scientists and artists have studied and designed numerous variations of this concept. Differences of opinion about the validity of one format over another continue to provoke debate. In reality, any colour circle or colour wheel which presents a logically arranged sequence of pure hues has merit.
What are Primary, Secondary and Tertiary colours?
Primary Colours-Red, yellow and blue
In traditional colour theory (used in paint and pigments), primary colours are the three pigment colours that can not be mixed or formed by any combination of other colours. All other colours are derived from these three hues.
Secondary Colours- Green, orange and purple
These are the colours formed by mixing the primary colours.
Tertiary Colours- Yellow-orange, red-orange, red-purple, blue-purple, blue-green & yellow-green
These are the colours formed by mixing a primary and a secondary colour. That’s why the hue is a two word name, such as blue-green, red-violet, and yellow-orange.