The new prisoner uniform — a blouse and trousers — comes in two colors: dark brown for prisoners awaiting trial and tan uniforms for post-trial prisoners.
The newly issued uniforms will be free of rank, ribbons and insignia, only displaying a white name tape on the right side of the chest.
https://www.stripes.com/news/navy-color-codes-prisoner-uniforms-to-prevent-confusion-in-the-brig-1.578868