Skies the limit to be honest. Obviously the window frames are going to be white based on the last picture so you are going to be somewhat relegated to the softer parts of the color spectrum. Is the roof changing color?

No, the roof is new and it staying. The roof color is kind of orangey red.

White looks good and you could do a colorful door. Navy blue or even a light blue would look very nice as well.

the entrance door will be white with half of glass with the shade inside. I don't really white exterior color and was thinking bluish gray, not too dark. wanted the white windows to stand out

There are literally hundreds of colors.