Thanks! No, definitely don't want to bring attention the the ceiling, and would prefer it be lighter than the walls. Is it worth considering another white altogether for the ceiling? (Chantilly Lace maybe?) There is the possibility of doing something different for the trim, but the door opens into our bedroom where all the trim and woodwork is Acadia White and isn't getting repainted, so it would be tricky.

Way too much Googling later, I’m thinking BM White Dove on the ceiling (and maybe also on the trim and just have a little mismatch at the door?)

Do the Swiss Coffee on the ceiling in flat. BTW: Two whites when done well as this will be look really good together. In my kitchen my trim on the walls and windows is one white, and my cabinets are a second white and it works well.

@cpartist it won't look darker on the ceiling than on the walls? That's my worry there. The walls will also be flat, which makes it a bit challenging too (since we're using BM Bath & Spa paint, which I love performance-wise--we have it in our existing bath--but which only comes in flat). If the ceiling is a different color, will use BM ceiling paint which is a touch flatter than the Bath & Spa, but if they're the same I'll just use the same paint everywhere. This is a south-facing room, but it only has one window where light is blocked by tall buildings part of the day, and the window will have obscure glass anyway, so very muted natural light.

Look at it this way - you will have already bought a gallon of Swiss Coffee. I don't know how big your bathroom is, but if you have any left after painting the walls you can try it on the ceiling. If you don't like it, try Simply White. I would try that before Chantilly Lace which I find to be a cool color. For me there isn't enough contrast between Swiss Coffee and White Dove to make White Dove a contender for the ceiling. You might as well use Swiss Coffee instead of White Dove. Simply White is lighter than Swiss Coffee so there would be some contrast.

I've painted wall colors on the ceiling and don't find them darker looking that the wall color.

In fact i have a room with kilim beige on the wall and ceiling and the ceiling looks much lighter than the walls!

I do have a window in the room.

@kandrewspa good point--I just took a dozen half-used gallons of old paint to our haz waste disposal center and couldn't help thinking about how much those must have cost! It's a small bathroom and much of it is window, door, or tile. There's an adjacent closet that we expanded as part of the project, so I was planning to use leftover paint for that, but we don't care what color that one is since it will be covered by closet fixtures. Maybe I'll have them do a first coat of everything in Swiss Coffee in the bath and make a call on it before coat #2, and then if we run out I can get something cheaper for the closet, since it doesn't need Bath & Spa anyway. Should I stick with the Acadia for the trim, or try to mix that up? (It's worth noting that the trim in the bedroom that it opens to was painted with oil-based Acadia White 15 years ago, so they won't match up no matter what--it is a bit more yellow than the non-oil-based Acadia White we have in our kitchen, plus the age.)

It could just be my monitor, but the Acadia White appears to have more yellow in it than the Swiss Coffee does. (BTW, I LOVE Swiss Coffee color; have seen it on many homes and is always gorgeous). I would think that a white with less yellow (?Simply White, SW Pure White) would look better for the trim; either that or just use Swiss Coffee on the trim as well. Just my 2cents worth :).

@Karen definitely not your monitor--Acadia White is a creamy yellowish white. We didn't choose it for our house--whoever painted it for sale years ago did all the trim and casework in it so we've just stayed the course--but I do love it in the right wall color combos, which most of our rooms have. But our new bathroom tile is mint green with cool undertones, so not at all the right match. I chose the Swiss Coffee because it has ever-so-faint gray/green undertones so doesn't pull pink or yellow with the green tile.

No it won't look different on walls and ceiling. Here are a few pics of my upper walls and ceilings which are the same color.

Same BM Fernwood green on upper wall and ceiling. Both flat.

Same BM Wilmington Tan on upper wall and ceiling. Both flat.

Forgot what beige color but it's the same on the upper wall and ceiling.

I included this kitchen pic so you could also see the two different whites. The trim white is BM Cotton Balls and I don't remember what color the cabinets are, but it's a SW color. Ceiling color is same as wall and is BM Wilmington Tan flat paint.

Interestingly, I got a sample of the Simply White today, and discovered it is 25% of the Swiss Coffee formula. They are definitely very similar.