The darkest brown eyes of all.lol They look gold colored in the light. Dark Brown is very, very common in African Americans. Its hard to find different eye color variations. Mainly those of African decent have eyes that are almost never different colors.
The traits for dark brown eyes are just so prominent in the African heiritage that it offers little opportunities for different eye colors because dark eyes always win over lighter eye colors. But of course there are some rare cases in which blacks have light brown, gold and green eyes.
I think Hazel eyes and blue eyes inheirited in blacks are due to the fact that they might have some European acestory some where in there maybe, but its not a definate answer. Its hard to know the inteiritance of eye color because its polygenetic type trait in humans. With that being said, Asian eye color follows similar patterns of African eye color maybe, I'm not sure.