Ruby is a fair-skinned young girl with silver eyes and neck-length black hair with red tips. During her time attending Beacon Academy, she wears a black long-sleeved blouse with a high collar and red trim on the sleeves, over which is a black waist cincher with red lacing up the front, and a matching skirt with red lining. She also wears a pair of thick black stockings and black combat boots with red laces, red trims around the top, and red soles.