Blue and Tan Explained
  A Blue and Tan Dog carries the Gene Formula (atBCdEgmrSt) and will reproduce its color only if bred to a dog of the same color or to a dog that is carrying the blue (d) gene recessively.  The Tan markings or Points of tan that show on the coat are specific to this gene. This color can also be dominated by the color Black and the color Tan. It can appear in varying shades from very light silver to a deep gray in color. The Tan points can also vary in shade from a light creme to a deeper brown color.
                                                                       MATING RESULTS

Color Index