What Colour Goes With Red Floor What Colour Paint To Go With Red And Black?

What colour paint to go with red and black? - what colour goes with red floor

I am decorating my bathroom.
I ordered a bright red shutters and have a flat black and white tiles. My dashboard is black, and all bathroom accessories are either red or black and white.

What color is the best system?

I know it must be very pale, but can not decide on a shade. I think that ice cream or blue or gray.
What do you think?