Skin tone (sometimes referred to as skin colour), was developed based on how different skin tones would respond to UV-based management for a psoriasis. This was called the Fitzpatrick Scale. The Fitzpatrick Scale is based on an individual’s response to sun exposure, and whether they may tan or burn. In general, lighter skin is more prone to burning, while darker skin is less likely to burn. The scale takes into consideration three main areas: genetic disposition, sun exposure, and tanning habits. The scale ranges from level I (pale white skin) to VI (deeply pigmented dark down to black skin).