Thanks Jan, this slab is outside in the direct sun which makes it nearly impossible to tell. It is helpful to me to hear other peoples experiences.

I guess you shall have to wait for a cloudy day OR you ask the stone yard to haul the slab indoors! That said?

Any bath is the sum of all parts!

What floor, what shower tile, what everything else, and that inludes lighting!

As to other people ? Their slab is not yours, nor is their bath:) Its apples to elephants comparis comparison!

The cup hinges on your cabinet doors make it easy to remove one and replace it without affecting the alignment.

@JAN MOYER I find other people's experiences very helpful. I I have found that if a designer works with a material and paint color often, they usually have a good idea of colors that may or may not go with certain items. This marble seems to have a very consistent, bright white background. Of course, you always want to try them in your home. I am just trying to find out if others have had success with Bianco Rhino / Mystery White and SW Pure White or if they often find it a bit of a miss. I am completing this reno in the dark with many limitations. We do not have power in our home, so it is not possible to try it in my light. If the countertop and vanity clash, there is no need to continue to tile etc. The inside area of the slab yard is very dark and not very useful.

Your bathroom looks pretty darn bright. I would take a door to the slab yard and look at it even though it is not the exact lighting condition of your home. Nobody else's home lighting is going to be exactly the same as yours either, nor is their slab going to be the same. Do the best you can with what you have - your door, the yard slab.

(It always perplexes me when a suggestion is made to look at items in the light of your home when a space is being built and might not have lighting installed yet!)

@Kendrah, Funny how bright the bathroom is in this photo. We have a skylight and this was around noon so the sun was directly overhead. Thanks for your thoughts.

Designers face this challenge every day of their lives.

“ The slab is outside in direct sun”

Here? It could be outside in rain, in snow, in four different seasons of different light!

At a point?

You assess the biggest risk- a worst case outcome …

and ALL that is or amounts to? A new paint on the vanity.

Would you want to do that? No, and neither do we! But there woukd be no 100% guarantee from any homeowner, any designer!

Your slab is from Mother Nature.….. so too anyone who had a slab as yours!

You move on :) Why? Because to not move on is to remain stuck in pursuit of a perfection that is over rated, rarely exists.

You have two surfaces- one seen on a horizontal plane- the other vertical.

They could be ” identical identical”!!!!and still look different, and different at time of day, or evening.

Are Lauren and Annie the same person or no? Lauren said their slab was out in the sun, and Annie said theirs is inside.. but both sound like they are working on the same OP bathroom.

Anywho. Paint and stone are different materials and will look a bit different, even when very close in color. Many artists prefer sunlight or as close lighting they can get because sunlight can show colors really well. Take a cabinet door to the yard. If the slab is in the sun, it should show very well if they go together. If the slab is inside and the lighting is poor, bring a couple hand torches to illuminate the area.

Also, keep in mind that the marble in question is natural stone. There will be variances in how much coloring there is, veining, ect. If you want your slab to look a particular way, you will need to choose the specific slab you want. And probably be in on the approval for how it is cut to ensure you get what you want out of the slab.

We have Bianco Rhino in our master bath with Sherwin-Williams Alabaster on our cabinetry. I was not trying for an exact match on the colors, nor would I want one. The marble is gorgeous and has held up great!

The fact is there is no magic formula to help you All things in a space have an effect on all things in a space . I like LED 4000K lighting in a bathroom which BTW mimics bright sunlight so a bit less of a guess. I agree 2 identical items on 2 different planes can look different . Seeing your choices in someone elses home is really not helpful . I like the marble would not stress me a bit if the cabinet wwas a tad different white but what are the floors the shower walls ???? I rarely choose vanity counter first it is like wall color a last thing in the space . Show us all the other choices you have already made and maybe more help will come

Just using the 2 pictures you posted, this is what they look like together. Take into account that the slab will be flat so you will only see about an inch or so from a distance and up close you won’t really see the cabinet.

@Lauren Morgan - The sense I get from you is not that you are looking for these two surfaces to match, but you just want to make sure that they don't clash or look terrible together for some reason. For example - is the marble a more purple undertone grey and the paint a more something-or-other based white so they won't look good together.

I'm not the best with this kind of question, but I am might surprised that nobody else has chimed in with a more educated response than what I can provide. We get nothing is perfect but you can sure believe that once it is all installed, if you posted here and asked why it didn't look right together, you'd get a pretty pointed explanation of why the two don't work together and suggestions to rip it all out and start again!

If you did get some feedback that they don't look right together, would you then start searching for a different counter material?

The cup hinges on your cabinet doors make it easy to remove one and replace it without affecting the alignment.

This is the best suggestion on this board.

@Kendrah, you are spot on and I appreciate your thoughts. If I was getting a lot of feedback saying it might not look good together, I would go to plan B. There are so many white undertones it is driving me nuts.

This is helpful. Thanks!