Not really. A real color is a mixture of reflected wavelengths and more, for example a fluorescent marker is that, fluorescent, you give it UV light and you ge

Not really. A real color is a mixture of reflected wavelengths and more, for example a fluorescent marker is that, fluorescent, you give it UV light and you get green. A real color in real life behaves different depending on the light that illuminates it, and the angle of incidence. RGB and CMYK is display-specific primary inks dependent. There are spaces for device independence colors. They work well for cinema and places were illumination is controlled and restricted. Pantone let you control a color over a broad range of circumstances on the real world, like color of a shirt at the sunset. It looks like the stupidest of things, but a client buys you a suit that looks great at the shop but bad on his house or office illumination and he will ask for a refund. The same thing with a big poster on a building on London weather(totally different than on Madrid or Rome).