Charger Wire Colors

So I took apart my GEM to paint it and didn’t pay much attention to where the three wires go for the plugin charger. There is a green, blue, and brown cord coming from the charger. On the piece where the AC outlet goes there are three holes; green, black and clear/no color. Obviously green goes to green but what about the blue and brown ones?

Thank you

Neutral is long blade in USA 120v plug.

Gotcha. I was able to tighten the green and blue wires into place but the brown one won’t go. I noticed that the screw will tighten when there is nothing in the terminal but will not when the wire is placed in there…it just spins forever.

Any advice to fix this or should I just buy a new one?