What is CMYK?
The CMYK is the colour space used in the world of print and is sometimes called a subtractive colour process. Cyan, magenta and yellow inks are combined to create thousands of other colours. Black ink is added into the process because, while in theory black can be created by combining cyan, magenta and yellow, in reality the end result of this combination has a tinge to it that doesn’t give the effect of a pure black.