which do you think is the best color for my sons bed room, yellowgreen or blue?

I think Sky Blue would be a great color to paint a boys room. I think with yellow green you would have a hard time matching stuff. Plus with sky blue if he likes thomas the train or something like that it would match. Or else if he has a favorite baseball or baseketball team, you can paint his room in team colors:) Best of luck picking a color!

A nice bright color like red or orange or something that will really brighten it up.

I think the sky blue wold be better for the boys room.Have you ever put a border up around to top of the wall next to the ceeling? This would be very pretty, I have borders in all my rooms. I do not know what your son is into, sports, spiderman,racing, whatever, find a pretty border to put up.I would put alot of pillows to match also.Yes, you can still put the stuffed animals in the room.Good luck decorating.

How old is your son?
My vote would be for the sky blue. Blue is a very calming color and is perfect for a bedroom. A yellow green color (depending on the shade) could also be calming as well, but not as much. My son didn't want me to paint his walls, so his walls are a cream color. As for a theme or accessories, what are your son's favorite things? For example, my son loves Star Wars. When the post office Star Wars stamp sheet came out, I bought one & framed it & hung it on his wall. He also has Cars appliques on his wall and a Cars poster. His room is filled with all of his favorite things, Spongebob, plastic jellyfish, etc. On his bed, his comforter is dark blue and he has a Star Wars throw pillow as well as a bright turquoise mushy-bead pillow. He also has his favorite stuffed animals on his bed. Just go with whatever your son likes!