People with milky complexions similar to Jessica Chastain's tend to be of English or Irish descent and have light blonde or red hair and light eyes -- you also probably head straight for the palest shade of foundation at the makeup counter, and the strongest SPF at the beach.

Nude lipsticks with pink undertones that make the skin appear warmer -- like CoverGirl LipPerfection Lip Color in Crème, $4.99, or Bobbi Brown Lip Color in Blondie Pink, $25 -- look best.

If you have darker hair and eyes, but you still have a pale skin tone like Emmy Rossum, you fall under the fair skin tone category.

Like porcelain tones, you should still look for a pinkish hue, but a softer undertone like L'Oréal Paris Colour Riche Lipcolour in Fairest Nude, $8.95, or Lipstick Queen Velvet Rope Lipstick in Star System, $50.

Medium or tan skin tones like Kate Beckinsale don't need to look for nudes with a pink hue -- instead, try a beige color with slight hints of peach.