Accent walls are still quite popular. One idea is a dramatic dark color if you want to keep the decor neutral.

If you don't like it, you can always repaint. And you'll know before you're done so it's not like you'll have to do all the prep work a second time.

can I do paint two walls the accent color? Or is it ok to have the same drapes ((panels really) on two different colored walls?

I have two wall one color in the bedroom, and the other two walls two shades darker. I'm very happy with it, and don't really care if it's in style or not. I love waking up to color.

Make your home your own or you're never going to be happy with it. When you're happy with how it looks, it's done. That's one of my rules of decorating my house. The other is that if I like how it looks, it works. And I love my house because it reflects my personality.