Carbon Costume

Doki Doki Literature Club is a freeware visual novel game.  While it initially appears to be a light-hearted dating simulator, things take a more sinister turn fairly quickly.  The four main characters of the game include Monika, Sayori, Yuri, and Natsuki, all of whom vie for the attention of the male protagonist at different points of the game.  The girls all wear identical school uniforms that include a tan blazer, blue skirt, and orange vest.  You can choose which character to emulate depending on the socks and wig you pair with the rest of your costume.