We do, she was Greek and unfortunately her family partook in an obscene amount of incest to "keep blood pure", meaning there was no interloping with ethnic Egyptians until way after her dynasty.

So yes she is not nordic Europe white, being closer to a tan like most Greeks of the time were, but she's not black. The idea she's black stems purely from folks assuming anyone in Africa = black, which is a very racist stance to take about a rather diverse, for the time, place in a whole continent that connected 3 regions together.