Sorrel, bay, buckskin, palomino, black, and grey colors galore! Horse coat colors range from dark to light and every shade in between. There are five basic coat colors that about every other color is just a variation of. The five basic coat colors are: bay, black, brown, chestnut, and grey. With these variations a roan, which is a horse with either a black, bay, or chestnut base with grey hairs throughout, a palomino, a light chestnut with a cream colored mane and tail, and a buckskin, a horse with a yellowish body and a black mane and tail, are all possible. Shown today is a chestnut mare.