Some yinrih have a fur pattern resembling a fox minus the white countershading. A red coat without the black ears and "socks" is also possible. Other coat patterns include solid white with or without biscuit pointing, piebald/painted, which is a white coat with black or brown patches), solid brown, jet black, and various shades of tan or tawny. This assortment of "domesticated" coat colors is an adaptation to aid sires and dams in differentiating their pups at a distance. Yinrih use odor as the primary means of distinguishing individuals, but when standing upwind it can be hard to catch their scent. Pups emerge from the womb nest with as distinct a coat from their litter mates as possible.

Regardless of fur pattern, the exposed skin on the palms and soles is grayish-black like the skin of an adult Orangutan. Painted yinrih also have patches of black skin under their black or brown fur.