The Grey skin colour is a vanity reward from the 2015 Silver and Gold Premier Club. Once the benefit is obtained, it permanently unlocks the ability to change your skin colour to grey. You can change freely between normal/grey skin by speaking to the Make-over mage.
- Despite being called grey, the colour is sky blue. This is likely a reference to the Germanic mythology dwarves and gray ones, which inspired the Dark elves in J. R. R. Tolkien's The Lord of the Rings. However, Dark elves in The Lord of the Rings were identical to normal elves.