I'm guessing you're a girl. I think seafoam green looks really pretty with magenta. If you want something more neutral, I also like charcoal gray (any gray really!). Good luck
I Have A Seafoam Green Comforter What Color Should I Paint My Walls?
I personally think sea foam is really pretty with shades of mauve with a grey base, so kind of a purple-grey. But I guess it depends on what fits your style. Thats just my opinion :)