Black Face And Dark Grey Body?

[Eliza5478]

Hi, my cat had 3 kittens 8 weeks ago, one is short haired all black, one is long haired with very black fur and a white chest and mittens, and the runt was grey when he was born but now he is long haired with a black face and dark grey body? I was wondering if he was going to stay this way or change over time? Either black or grey? He's cute and even the vets say he's weirdly colored, a lot lighter shade than his sister's. (Picture doesn't really show that well but you can kinda see the difference)

 

[Eliza5478]

Here's a picture when he was younger.

 

[StefanZ]

He is a burmese type point! Not. Common but here we see it!