To make figures with another skin tone we can also use dyes. From my point of view, it is always better to use dyes to make skin color (both white and black). We will have to work less and you will always obtain the same tone.
For these skin tones, I recommend using earth tones or light browns: chocolate, brown, dark brown.
I hope this post has been useful to you and that you know how to make skin tone for fondant. You will save a lot of time on your figures.