There is no definitive answer to this question as it is vague and lacks context. There have been several instances of people changing their appearance to appear Black, which could be interpreted as "turning their skin black."
Some notable examples include:
- Martina Big: A German model who has undergone extensive cosmetic procedures, including tanning injections, to alter her appearance to resemble a Black woman.
- Rachel Dolezal: A former NAACP chapter president who faced controversy for identifying as Black despite her white heritage.
It is crucial to remember that altering one's appearance to mimic another race is a complex issue that raises questions about identity, appropriation, and the impact of such actions on racial dynamics.