choco brown (if you want a classy look) but for a date or a even just a little more color do purple
black
Well, really it depends what shade of blue it is. But since blue is a cool color, than it should probably match with other cool colors (purple, green). It wouldn't look very good with warm colors...
You can combine colors like; purple, beige, white, some blue colors, dusty rose, black
orange. i love the color for its representation of postitive energy