Context is key, much more to selecting a vanity than just floor color. Fixtures, walls, wall tile, counter tops, natural light, etc. all factor in.

Your floor is so neutral that you could use any warm color or wood and coordinate countertops, backsplash, etc.

As has already been commented, we really need to know what your wall tile/shower floor tile (if there is a custom tile shower pan)/countertop/how much natural light/if there will be a tile backsplash behind the vanity/etc.