The Coloration Wheel:
A colour wheel/circle is centered on the most important colours, specifically-Crimson, Blue and Yellow. In 1666 Sir Issac Newton produced the first circular Diagram of hues. Considering the fact that then, different scientist, artists etc have designed and studied many features of Colour Wheel.
Division of Shades:
Very well !! Hues can be divided into Principal, Secondary and Tertiary Colors.
Primary Colours: Pink, Yellow and Blue.
As for every common coloration Theory(Utilized in pigments and hues), most important colors are three primary shades which cannot be formed or mixed by any combos of other colors. All the other shades are derived from these three fundamental Primary Shades.
Secondary Colors: Eco-friendly, Orange and Purple.
These hues are derived by mixing most important colors.
Tertiary Colours: Yellow-Orange, Red-Orange, Crimson-Purple, Purple-Blue, Blue-Green and Yellow Environmentally friendly.
These are the shades fashioned by mixing secondary and major colours. That is why the hue is named like this i.e. Yellow-Orange, Purple-Orange, Blue-Eco-friendly