Do all yellow labs have pink colored skin and blacks have greyish skin,or something different

Yellows with excellent pigment will often have dark gray, almost black skin. It will sometimes be mottled on their bellies though.

Depends, one of my yellow girls (bad pigment) has pinkish skin. The other one has really dark skin - she's bald now and looks dirty because you can see her skin through the hair.

Why is she bald??

My dog who is 7 month old has excellent dark pigmentation(i mean eye rings and nose,lips) but skin is pink,is this abnormal??