Colette CL5270 dresses are offered in Purple Multi. $599 is the Formal Approach best price guarantee for style CL5270 by Colette. Shop with confidence, Formal Approach is an authorized Colette prom dress store. Colette CL5270 is offered in sizes: D0, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.