My favorite nail shade of all time is GREIGE. There is some dissention by now about what color actually constitutes greige, but to me it is a blend of tan, purple, and grey; you could call it a purple-tinged beige or a warm, rosy grey. It seems to have started "trending" in fall of 2010. No doubt some of this was due to Lady Gaga, who went through a greige phase around that time, appearing in Vanity Fair decked in the color and also wore it on her nails to the VMAs that year.