PANTONE Color Chart
The Pantone Matching System was created to make a uniform standard for spot colors. 
There can be very drastic differences in color when you choose a PMS color and then print the job as four-color process. 
It is highly recommended that if you are going to print four-color, and you have chosen a Pantone color to match, that you have a PMS book that shows a four-color swatch next to the PMS color so you will be aware of possible color shifts. 
This chart is to give you an idea of the PMS Colors... use a PMS book for an accurate match.  
Colors may vary among different computer monitors as well.