The Pantone Color Matching System (PMS) is an industry standard color matching and reproduction system. By creating a standardized and cataloged set of colors, Pantone allows various manufacturers in different locations to make use of this system in order to make sure their product colors will match without having to directly contact one another. The actual Pantone guides consist of a large number of thin cardboard sheets measuring approximately 6"×2" (15cm×5cm) which are printed on one side with a series of color swatches and then bound into a small flipbook. An example "page" might contain a number of blues varying from light to dark, or from a "true" blue toward a more turquoise shade.
One of the most notable applications is the standardizing of colors in the CMYK process. In the CMYK process, color printing is achieved by using four inks: cyan, magenta, yellow, and black. This use is especially important since the majority of the world's printed material is produced using the CMYK process. There is a special subset of Pantone colors that can be reproduced using this process, and those able to be simulated through the CMYK process are specially labeled in the company's guides.
Colors in the Pantone system are referred to by their allocated number, for example, 'PMS 130'. PMS colors are almost always used in branding and have also been used in government legislation to describe the colors of flags. Scottish Parliament debated a petition in January 2003 to refer to the blue in the Scottish flag (St. Andrew's Cross) as 'PMS 300'. Canada and South Korea, as well as organizations like the Fédération Internationale de l'Automobile (FIA) have also moved to match their colors to Pantone coded colors in an effort to avoid the erroneous production of their flags/logos. Several U.S. states including Texas have passed legislation for the use of PMS colors in their flags for this same reason.