Recognised colours are:
Black and Tan - Raven black with tan markings above the eyes, on cheeks, inside ears, on chest and legs and underside of tail. Tan should be bright. White marks undesirable.
Ruby - Whole coloured rich red. White markings undesirable.
Blenheim - Rich chestnut markings well broken up, on pearly white ground. Markings evenly divided on head, leaving room between ears for much valued lozenge mark or spot (a unique characteristic of the breed).
Tricolour - Black and white well spaced, broken up, with tan markings over eyes, cheeks, inside ears, inside legs, and on underside of tail.
Any other colour or combination of colours highly undesirable.