Dark brown skin:

Dark brown skin, often erroneously referred to as "black", is the typical skin colour of most tropical regions. It roughly corresponds to a Luschan scale of 24-29. It is the major skin tone of Sub-Saharan Africans from savannahs, tropical forests, to South African deserts. It is equally common in the Saharan Toubou, South Indians, among Asian Negrito populations, and typical for most Aboriginal Australians. It also dominates in Melanesians. A few native Americans may also show this skin tone. Dark brown skin offers a good protection against strong solar radiation, at the same time studies show a higher vulnerability to severe cold and reduced production of vitamin D in dark winter months of cold regions. Sun burn is possible. Many early Homo sapiens probably possessed this skin tone.