Primary colours:
1.If we break the white colour we can get the seven colours. Red, Orange, Yellow, Green, Blue, Indigo, Violate.
2.But among the seven colours their are three colours Red, Blue and green can produce white light. Those are called Primary colours.
3.Primary colours are permanent colours which can not be obtained by mixing two or more different colours.
Secondary colour:
1.By mixing two unlike primary colours we can get obtained the secondary colour.
2.The colours are
• Red + Blue = Magenta
• Blue + Green = Cyan
• Red + Green + Yellow