What color do you think he will turn out to be? His mom is black and his dad is grey.

If I were a betting man, I'd put my money on a grey / silver. Don't they tend to lighten in colour as they reach doghood?
How old is that little bundle of fur, anyway?? I'm guessing somewhere around 10 days?

My Mishka has a brother that looked this color as a baby, he turned out a dark grey. Silvers are generally much lighter, almost a light reddish color as babies (I can only go by the silvers I've seen though, so I can't really say it's the rule) what I don't know is if this baby could turn out to be a diluted black. My uneducated guess though, would be this baby will be a grey.

Silver has a white undercoat, grey has buff scrubbing. I'd go with grey. You might see what other colors are behind the bitch and dog. You might have a wolf-grey.

My little girl was much lighter than that at that age, she was a dark grey, then got way lighter, almost tan coloured, then back to grey I'd guess at diluted black too but I've only seen a couple of very young huskies