Red, Yellow & Blue are the primary colours from which all other colours are made.
Mixing the primary colours with each other will give you secondary colours or Orange, Green & Purple.
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Mixing one primary colour and one secondary colour will give you Tertiary colours. Red/Orange : Yellow/Green : Blue/Violet : Red/Violet : Yellow/Orange :Blue/Green
Tints are made by adding White to a colour.
Tones are made by adding Gray to a colour
Shades are made by adding Black to a colour.