Why does the color in my old guide look different than the same color in my new guide?

Pantone Guides and Books are produced and measured against high manufacturing standards. In each print run, we ensure highly regulated ink formula consistency, use popular commercial-grade 100 lb and 80 lb text weight paper stocks, and apply careful monitoring for imperfections during the production process.

There are several factors that can affect the appearance of the colors in your guide(s). Colors may appear inaccurate over time as a result of handling, fading, improper storage, and light exposure, among other factors. Pantone recommends replacing guides and books every 12-18 months, as normal usage, handling and exposure may render your colors inaccurate.