I only know for Skin Tone and Hair Colour.
Skin_Tone:
Humans - Pale, Fair, Olive, Tan.
Dark Elfs - Tan, Brown, Dark.
Dryad, Orcs, Goblins - only Green skin.
Slime - Jelly.
Drow and Nereid - only Blue, Pale blue, Teal, Purple.
Hair_Colour:
Humans - Blond, Red, Auburn, Brown, Black.
Elf, Dark Elf, Drow, Fairy, Dragonkin, Lamia, Harpy, Arachna - White, Green, Purple, Blue, Blond, Red, Auburn.
Dryad - Green, Purple.
Slime - Jelly.