Ladies, enjoy those bare legs while you can. This fall is all about monochromatic outfits from head to toe. The defining trend of the season will be tights. Save your black and nude colored stockings for next year, this fall is all about color, and the hard to find hues of the season. This summer has been all about neon, a revival of 80's flash. When shopping for fall's biggest trend, think autumn crimsons, yellow ocher, persimmon, violet, blue.