Colette CL2010 dresses are offered in Periwinkle . $609 is the Formal Approach best price guarantee for style CL2010 by Colette. Shop with confidence, Formal Approach is an authorized Colette prom dress store. Colette CL2010 is offered in sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.