There’s pretty much no limit to the horse colors you’ll see in the equine world, as well as huge variety of coat patterns that make endless combinations possible.
Equine coat color is determined by genetics. In very simple terms, two base coat pigments result in a chestnut coat (a reddish brown color) and black. These two colours commonly interact to produce another base color, a dark brown known as bay. The variation we see in horse colors is caused by additional genes, which modify and enhance the coat color.
