I cant get him to sit still for a picture right now.... His dad had long hair and was solid black and his mom was solid black with a white patch on her chest. According to his AKC pedigree his grandparents on his dad's side were both all black and his grandmother on his mom side was blue and grandfather was black and red...I'm just a little confused because I have read that 2 solid black german shepherds will always have solid black puppies.potentially. solid blacks can also have a bit of bleed thru... generally doesn’t show up til later.
photos and pedigree would be more telling (what color were the parents? littermates?), a bi color would also have a bit of tan under their tail... vent area
Here is the tan in between his paws. And the tan in his ear. His tail doesnt seem to have any tan on it but the part of his tail near his butt is kind of bald looking so I'm not sure.Black dogs, as they age, can have bleed thru tan on their legs. They are genetically black.
You would have to post a picture but my guess is if you are seeing tan as a young puppy that you might have a bicolor. If it's just between his toes and inside his ears, without the tan vent as Fodder describes, then I would think he's a black.