As illustration only, some african people in the lands of islam.
Al-Namari : Kitab al-Mulamma (Shinning book) (d995)
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Taken from: http://savethetruearabs.proboards.com/thread/391/namari-lays-out-deniers-truth
Verily Allah created five colors - white, black, red, yellow, and green. He made four of these colors in the
Children of Adam - white, black, red, and yellow. He gave the Arabs, the Abyssinians, the Zanj, and those
who look like them in general - blackness.