Sorry, I know this question is asked a lot. BO has a bay mare that has had four foals. First was a palomino out of a palomino stud, the next two were out of a stud I believe may have been brown. He was very dark colored, referred to as a black by a few, but definitely not. Both he and the dam are thoroughbreds. First filly from this cross is the one in question(pictured below), second filly was a true bay, and the final foal out of this mare was by a thoroughbred stallion that was chestnut, foal was chestnut.
Any how, here is the mare in question: