I am in a trivial debate with someone over the question of if Cyan is the same as Blue. I have lurked around the forum and I see many people saying 'cyan(blue)' or 'cyan-blue'. Are Cyan and Blue the same color? This person claims they worked with people in the print industry and overheard them use Cyan and Blue interchangeably as it would seem people do here on these forums. Does this mean they are one in the same? No matter which color model I look at, I can tell a difference, quite notably, between the colors Cyan and Blue. What do print/photo professionals mean then they say 'cyan(blue)' or 'cyan-blue' or 'blue-cyan'?? The same questions follow for the other colors of the color models. Thanks for your help.