What causes the Liver and Tan Bloodhound to appear softer and warmer than the Black and Tan variety?

Answer

The eumelanin (black) pigment is diluted by a recessive gene resulting in liver.

In the Liver and Tan coloration, the black pigment is diluted due to a recessive gene acting upon the eumelanin, transforming the primary coat color from black to a rich, warm, reddish-brown hue known as liver.

What causes the Liver and Tan Bloodhound to appear softer and warmer than the Black and Tan variety?
colorbreedBloodhound