I am in the process of finishing up a small full bathroom reno where we used light porcelain tiles a white tub and toilet. My DH is building the vanity and intends on painting it a dark color (Texas leather Benjamin Moore) and probably a white quartz vanity top. Yes I could have used white-I think it is a personal preference of whether to go light or dark. In my case I chose dark. When it is all completed I will post pictures.

I think it will be easier to go with darker cabinets in your case-you'll be less concerned about colors, because dark will contrast both the floor and the countertop (I think the second one is a better match to the floor even though I might be mistaken-different monitors show colors differently. both of them are beautiful of course..).

However if you decide to go with white-it should be cream rather than pure white. Because of the "warmer", earthier notes in the tile.

Otherwise, it's purely personal preference. Depends on your space and how you want to feel in it. Contrast will make it a bit more energetic so to say. Blending will make it more quiet.

Agreed with aprilneverends, I think its personal preference between the contrast or having things blend together. In my opinion, would go with the darker cabinets to get some pop and cool contrast in the room. My 2 cents.

Maybe I will do light in the basement and small bathroom, and dark in the master. The master bathroom is very large, cabinets are over 94".

Great idea, tailor the colors to the space. Looking forward to hearing the result!