Although you can probably infer which levels are high and which are low in my story, Gray, I wanted to share what I had scribbled down a while back about the Amplifier scale, from weak to powerful:
Gray (No Power, Some Exceptions)
Green
Yellow
Orange
Red
Blue
Pink
There probably was some better way to share this info, but eh, I'm lazy.
Also, last names are based on power level, for example, Ayako's (my main character) last name is Gray.