Black Sable is a recessively inherited colour. Both parents must carry the gene in order to produce it. Pups are born nearly black at birth. Their colour will fade as they grow - but return as they mature. The undercoat is lighter and can be grey, fawn or red to Mahogany.  It can take up to 3 years for a dog to regrow the full dark coat they were born with. Pups can have associated markings such as the black points: socks, mask, ears, chest or have red points like the Doberman. My bloodline carriers both point markings.