Many graphics software programs web designers and graphic designers use give them the choice to work in either RGB or CMYK. Scanners and digital cameras create images using combinations of just three colours: Red, Green and Blue (called "RGB"). These are the primary colours of light, which computers use to display images on your screen.
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Printing presses print full colour pictures using a different set of colours, the primary colours of pigment: Cyan (blue), Magenta (red), Yellow and Black (called "CMYK"). The 4 colour process or a full-colour printing that comprises the majority of magazines and marketing materials you see around you every day. At Tidy Design Portsmouth your RGB file will be translated to CMYK in order to print it on a printing press.