Ollie's pretty dark and has had very little color change since he was 8 weeks(granted he's only about 3 weeks shy of turning 5 months), in fact if you catch him at the right angle he looks bi-color, lol. Had a guy at the pet store not believe me that he is a GSD because of his coloring. His dam though is a solid black WL... I am noticing red hairs coming in on the bridge of his nose and in the right light I can see some red hair on the top of his head too. Very curious to see how he changes! I'll be a little sad if he loses his mask but mostly because that's just how I'm used to seeing now.