Not knowing what color blue your tiles are makes it difficult to answer. I have yellow with blue touches wall paper above my tile (which is not blue) and the room looks sunny. Greens go well with blue. If your blue is intense maybe you could use other primary colors for a daring splash. If you have a lot of blue, be sure to accessorize to carry the show off. Good luck !
Cream is a complimentary color, but I don't know the shade of blue that you have, if it's a light blue, then it will match nicely, I know, my kitchen has light blue. Hope this helps.
Like tiggersmom said a cream would look nice or just a white.