The Fitzpatrick Scale (a.k.a. Fitzpatrick din type test or Fitzpatrick phototype scale) is a numerical classification schema for the color of the skin. It was developed in 1975 by T.B. Fitzpatrick, a Harvard dermatologist as a way to classify the response of different types of skin to UV light. It remains a recognized tool for dermatologic research into skin of color.
It measures several components: Genetic Disposition, reaction to Sun Exposure and Tanning Habits
The Fitzpatrick Scale:

• Type 1 (scores0-7) White subject to burn
• Type 2 (Scores8-16) Tam/ Capable of tanning
• Type 3 (scores 17-25) Dark / capable of tanning
• Type 4 (scores 25-30) Dark
• Type 5-6 (Scores over 30) Very Dark