I know some pantone colors are registered to particular companies. For example there is a specific pantone for Tiffany Blue (1837). Pantone.com seems to let you search by code, but is there a site that I can type "IBM Blue" or "Tiffany Blue" and get the pantone code for?
To clarify my specific needs, I work for an ad firm as a developer. It would be convenient to be able to look up the registered pantone colors of my clients when I don't have access to them.