this is one option:(spot collors)
A spot color is a specially mixed ink that is applied on the printing press, as opposed to a mix of the four inks which make up process printing. Spot colors can be produced in a much more vibrant range of colors, and can have special characteristics which aren't available in process inks, such as day-glow or metallic ink.
Because they only use one ink roller, one plate, and one negative, spot colors can reduce the cost of printing if you limit your ink choices to black and one spot color. For example, if you choose to print a red and black letterhead in process inks, you will actually need three inks on three rollers (with associated plates, etc): Magenta, Yellow, and Black.
However, if you are already printing a full-color piece, adding a spot color will dramatically increase the cost of printing. You will add one more color to the four colors needed to produce, for example color photographs. It then is a five-color job requiring five inks, five rollers, five negatives, five plates, etc.
Many companies make spot colors, but the most popular is
Pantone, Inc. They not only make and sell inks, but they have a process which enables printers to mix the exact same colors from a set of base inks.