Sea blue would make for a very unique car if the exterior flows well with that color. Could work out great if you like the whole package.

 

It really is all about what floats your boat. No one here can specify what you will prefer when it comes to aesthetics. It is worth considering, when looking for parts, that few people think that blue is a nice color for the interior, as evidenced by the dearth of cars with that option.
My life is simple. Exteriors are white, interiors are black. It's a hopeless boring affliction, but I like it.