Michelle Williams for Louis Vuitton, hair color by Marie Robinson Marie Robinson is a hair color rock star. Her celebrity clients include Anne Hathaway, Scarlett Johansson, and Michelle Williams and her New York City salon is about to celebrate its fifth anniversary in April. She became obsessed with hair color because of the immediate payoff. “One of the things that I find very satisfying about hair color that I didn’t find in painting or drawing, was that I could see immediate results,” ...