CMYK

Definition: Cyan Magenta Yellow Key: the first three are the primary colours of subtractive mixing i.e. the principle on which inks rely to create a sense of colour. * A mix of all three as full, solid primaries produces a dark colour close to black. For good quality blacks, it is necessary to use a separate black or key ink. * The set of four inks are standardly used to print colour on paper stock: hence the term 'four-colour printing'. * The screen angle of each colour must be different from the others to avoid moiré.

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