Ethertone™ (0x71245b359703d9202dbD115D80315d7c08Ef857e) is Pantone™ for the blockchain™
You just send ETH to the contract, and a color name (limited to 32 bytes), and a color.
Wow! So useful! (Also I get all the proceeds. Writing these 50 lines of law code was so hard after all.)
Basically this recreates the entire business model of The "Official" Register of Color Names.