Four colour process

This is the name that printers use for full colour flyer printing. There are four colours used for flyer printing. They are Cyan, Yellow, Magenta and Black. Almost any shade of colour can be produced using those four colours.

Designs seen of a computer screen are displayed in three colours which are Red, Green and Blue. They are known as RGB colours. Because computer screens use only three colours to printers four, this is why they look different when printed out.