Light

Light is usually thought to be an order magic, though this idea is a bit short-sighted. Light is the foil of shadow, the two fitting together like a puzzle piece. Without light, shadow would devour all. Without shadow, light would be blinding. It’s commonly suspected the two may have existed before order and chaos. They are the only two found in both planes of existence.
Mortal users of Light are known as Clerics.

A blinding white with possible tinges of other colours

It is warm to the touch, but just enough to be pleasant, no more or less.

Those affected by light magic seem visibly lighter as if their colours were washed gently away.