The Fitzpatrick scale enables to classify the different types of skin:

• A very pale skin never tans, or very hardly and systematically burns. 
• Fair skin tans with difficulty and usually burns. 
• Olive skin sometimes mild burns and tans gradually. 
• Mate skin rarely burns and tans with ease. 
• Dark skin very rarely burns and tans very easily. 
• Ebony skin never burns and tans very easily"