Colour Mixing

There are two different platforms for mixing colours. 

RGB is for screen viewing only - Additive mixing is when there is a black base behind the colours like the black screen on the computer or the TV. These colours come from the light.
RGB ( Red, green, blue) is an additive colour mode.

CMYK is for Digital printing - CMYK (Cyan, magenta, yellow, black) is a subtractive colour mode as the paper background used in printing is white. It is made up of lighter secondary colours. To make a darker colour you just have to add more ink to the printing.

CLICK HERE - RGB & CMYK in printing

When producing imaging for your client you must be aware that what the client sees on the screen of the computer will be different to the finished printed material. In the advertising industry a digital artist will make two separate files. One to go to the printer and one for presentation using pantone charts to choose a similar colours. This is the best way to represent the closest colour to be used in the final print.