Dunno what color Adam and Eve were. If I were to guess, and I could be utterly wrong, they'd probably look like the people in Mesopotamia, where the Garden of Eden might have been.
According to Isaiah 53:2 in regard to Jesus, "He had no beauty or majesty to attract us to him, nothing in his appearance that we should desire him." which leads me to believe Jesus looked like your typical five-foot-two Jew of the day.
I've heard that the three sons of Noah were the precursors of a distinct group of people: the sons of Shem were the Jews and related groups, Japheth fathered the Caucasians and related races, and Ham was the father of the Africans.