Research by J. A. Heese says that until 1807, 36.8% of the ancestors of the White Afrikaans speaking population were Dutch, 35% were German, 14.6% were French and 7.2% non-white (of African and/or Asian origins).
Heese's figures are questioned by other researchers, however, and especially the non-white component quoted by Heese is very much in doubt.
A sizeable minority of those who speak Afrikaans as a first language are not white. The dialect became known as "Cape Dutch". Later, Afrikaans was sometimes called "African Dutch" or "Kitchen Dutch". Afrikaans was considered a Dutchdialect until the early 20th century, when it began to be widely known as a different language. The name Afrikaans is simply the Dutch word for African, and the language is the African form of Dutch.
