Colette CL2007 dresses are offered in Powder Blue, Buttercup, Lilac. $485 is the Formal Approach best price guarantee for style CL2007 by Colette. Shop with confidence, Formal Approach is an authorized Colette prom dress store. Colette CL2007 is offered in sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.