The blenhiem color is……
The Tri color consist of three colors; Black, tan and white. The amount of each color can vary.
Black and Tan
Black and tan cavaliers were the apple of King Charles eye. He favored Black and Tan colored cavaliers over all other color variations.
Ruby color cavaliers are meant to be solid ruby color. They can have white but is favored to not have white in the show ring. When breeding a breeder would try to breed a solid Ruby and solid Black & Tan to achieve no white or little white. If both parents do not have white then the pups should not have white.