I have seen all colors!
I have seen some races that are dark gray, almost black black.
The darkest gray, I think, looks like dark ash gray.
Not shiny, but matte.
My friends are blue and green and yellow and all swirly colors, and scaly and slippery, and wet and rubbery too.
Most have black eyes.
Some have green eyes and some have yellow eyes.
Some have two pupils in each eye.