Pantone colors are an agreed, industry standard set of colors that can be matched to accurately over a variety of processes, equipment, and materials.
They are identified as a series of numbers instead of names (except with fashion colors), so you will hear the reference PANTONE 2985 C instead of Sky Blue. This helps a great deal as one person’s idea of what Sky Blue is may be very different to another person, but with a number, you can refer to the chart and you know exactly what you are getting.
Keeping colors consistent is a big issue with Infiniti Mixed Media and is very difficult to do over different systems like print and the web. A certain amount of color shift is inevitable, but I work hard to try and keep this to a minimum.