Tanjiro is a young boy of average height with fairly tanned skin and an athletic, muscular physique. He has ruffled, black hair with burgundy tips, combed back to expose his forehead, and wide, dark red eyes with white pupils that appear lighter around the lower section of his irises. He also has a scar on the top left of his forehead. After becoming a Demon Slayer, Tanjiro wears the standard Demon Slayer uniform, a dark-brown gakuran jacket, a white belt, baggy chocho zubon pants.