Inspired by Marvels Werewolf by Night? I do.
If you Google for Werewolf, most werewolves are gray or brown. These are the most common colors for this specie.
But considering the fact in a bunch of pictures Werewolf by Night has even the same pants color that Sabrewulf has, so we could easyly afirm that Sabrewulf’s color 10 was inspired by Werewolf by Night!