Setting the Palette for Skin Colours

Pinned to a wall in the figure painting room at the school is Juan's palette for flesh tones. The principal colours he uses are: Lamp Black, Veridian (Green), Burnt Umber, Burnt Sienna, Cadmium Red, Yellow Ochre Pale, and White (Lead or Titanium).  Optional Colours include: Raw Umber, Ultramarine Blue, Cadmium Yellow, and Alizarin Crimson Permanent.

Here's a link to an online note summarizing basic rules about skin tones:
http://studioproducts.com/demo/palettxt.html