CMYK and RGB are terms used to describe the colour makeup of photos or images. RGB stands for Red, Green, Blue. CMYK stands for Cyan, Magenta, Yellow, Key (black). Computer monitors emit colour as RGB, while printers use the CMYK process. CMYK is also referred to as four colour process which is the most commonly used printing method worldwide. When images are downloaded from the internet in RGB, the colour can look washed out and faded when printed. This problem can be partly resolved by converting all RGB images to CMYK before printing using a graphic arts program like Photoshop or Illustrator. Some colours in RGB are impossible to reproduce in CMYK. The computer just chooses the closest possible colour match and unfortunately this can be vastly different to the original colour. To make things more complicated, your computer monitor will most likely emit colour differently to mine, which makes it virtually impossible to match colour by eye. Colour conversion problems are very common in printing so when designing your own artwork, make sure you choose all your colours in CMYK format from the start.