I understand that colours come in shades- like dark blue and light blue.
I understand that colours are given names based on similar objects- like lime green and emerald green.
I understand that colours are assigned special names in branding efforts- like Tiffany blue.
I even understand giving the same colour different names because of a minuscule difference in its tone- like Chantilly lace and snow (okay c'mon, it's white).
But I do not understand how intangible concepts can suddenly become colours. Well okay, I understand it for its branding efforts. Let's take NARS for example. Obviously, sex sells. But usually when a lipstick is advertised for its "sexy colour", it holds the implication that its hot rouge will make you irresistible. But with NARS, it's the colours themselves that are sexy. Please explain to me how Stolen Kisses, Orgasm, Pillow Talk, and Striptease are colours. Actually, don't...and get your mind out of the gutter!
If I was to make up a random name for a makeup colour, I'd call it Sarcasm. Then I could pause before a good joke and say, "Excuse me, I need to apply some Sarcasm".