It’s not just blue, it’s not turquoise, it’s not lapis; it’s cerulean. That pivotal monologue in The Devil Wears Prada explained how haute couture created a million-dollar industry based on that most specific shade of blue. Cerulean derives from Latin caeruleus, encompassing “blue, dark blue, blue-green”, suggested to be a result of a dissimilation of caelulum (changing one of the “l” sounds to “r