Cavalier King Charles Spaniels come in four colors: Blenheim — chestnut markings n a white ground with a white blaze between the ears and a lozenge-shaped marking in the center, called the “Blenheim spot.” Tricolor — black markings on a white ground; with tan markings over the eyes and on their cheeks, as well as inside their ears and on the underside of the tail. Ruby — a rich red all over. Black-and-tan — black with tan markings like the tricolor, as well as on their chest and legs.