She has shortblack hair (blue highlighted in the anime) and brown eyes. At the beginning of the series she had long hair, but after it was cut off during a fight between Ryoga and Ranma, she kept it short for the rest of the series.
She usually wears the girls' uniform for Fuurinkan High School, but has a wide variety of outfits. For training or anticipated combat, Akane wears a light yellow gi and is barefoot.