system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 The colour and birth of wizards (LOTR)

Can anyone explain the colour sequence (if there is one) for the wizards of the third age on Middle Earth? Also, I know Treebeard said the wizards first came from over the seas, but are the wizards born, or created fully grown?
gpt
They came from Valinor (the land "in the West" where the elves go.) Men cannot go there anymore. The land of Valinor is ruled by the Valar. These are ancient beings that were basically angels that entered into creation to hang out until the end of time. The Ainur were the same, but were basically servants to the Valar. The Valar selected 5 Ainur and sent them to middle earth as Wizards. They were called the Istari. They were to have the appearance of old men.

As far as the colors go, White was the one in charge, but the other colors had no real hierarchy. So Saruman was in charge until he went batshit crazy (corrupted by Sauron) and was replaced by Gandalf the White.