Colette CL5123 dresses are offered in Sunshine, Royal Blue, Lilac, Blush. $599 is the Formal Approach best price guarantee for style CL5123 by Colette. Shop with confidence, Formal Approach is an authorized Colette prom dress store. Colette CL5123 is offered in sizes: D0, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.