Theresa W. of Casablanca Kuvasz in California shares this photo of 7-day-old puppies. Their pink skin at birth is already turning gray, on its way to becoming slate gray or black in color.
“The skin has a lot of pigment, and is slate grey. The nose, the eyelids and the lips are always black.”
From: Pál Sárkány and Imre Ócsag, Hungarian Dog Breeds, Budapest, Hungary: Corvina Kiadó, 1977, 2nd ed. 1986, p. 103.