What colors would work well with this blue sweater?

I'd say it's almost a navy color.

I love this sweater's style and unusual neckline (I wonder how it's exactly called?). Unfortunately, the only color options are black, white, beige, brown, sage green and this blue one.

I'm looking for inspiration. My head cannot really think of any if I'm to be fair.

What colors would work well with this blue sweater?
What colors would work well with this blue sweater?
What colors would work well with this blue sweater?
Post Opinion