Cool article! I've understood the difference between additive and subtractive for a while, but hadn't thought about the discrepancy between RYB and CMY. I also

Cool article! I've understood the difference between additive and subtractive for a while, but hadn't thought about the discrepancy between RYB and CMY. I also recommend watching this short video on the origin of ROYGBIV, and why Indigo probably doesn't really deserve it's own letter - but it got one, because of European music notation: http://www.theatlantic.com/video/archive/2014/01/why-roygbiv-is-arbitrary/283432/ http://www.theatlantic.com/video/archive/2014/01/why-roygbiv...