To help those in future searches.....we chose Sherwin Williams High Reflective White as our interior trim color. We are very happy with the choice, pops against the wall paint colors we chose (Crisp Linen, Natural Linen and Neutral Ground). It comes across as a "neutral white" to me. But it did cost us a few hundred more dollars than our original paint quote. Apparently this color only comes in some of SW paint grades so we had to upgrade to a different grade to get this color.

We closed on our house today wahoooo! I only got to spend about an hour there but looked quickly at the samples for trim/doors/ceilings. I think I've narrowed it down to three possibilities: BM Simply White, SW Extra White and BM Super White. I thought about BM Chantilly Lace too. Basically, looking at the finishings, my first gut is that BM Simply White looks the best. I just worry it may look too yellow once up on everything. At least that's what I read (and you know how reliable the internet is). First question: has anyone had experience with BM Simply White? Does it just read warm or do you see the yellow in it when it's one trim/doors/ceilings? So I may go that direction, or wonder if I should go with a cleaner white but something close. Something still a little warm... As for the runners up, from what I can see SW Extra White and BM Super White are very similar but Extra White maybe looks a little warmer? Maybe because it has more chroma? Is this understanding accurate, Lori A. Sawaya?? And it seems to me that the order of warmth would go SW Extra White, BM Super White, BM Chantilly Lace... is that a correct reading? Again for context - East/West exposures with a lot of shade. Wall colors aren't chosen but would likely be something along the lines of BM Edgecomb Gray, BM Ballet White, BM Chelsea Gray, BM Natural Cream. Daughter's room will be BM Opal. I'll try to take some pics of the finishings tomorrow but would love any thoughts on this. Thanks!

The SW base without tint is Extra White SW 7008. Some painters have an extra shot of white colorant shot into the can. I've seen it. I've measured it and I don't see a difference VISUALLY. However, some painters believe it helps with hide. Because Extra White may need more than two coats. If they want to do an extra shot of white and can keep it consistent can to can, I'm fine with that. Ben Moore's base without tint is White OC-151. It's very pretty too. I believe (don't quote me) High Reflective White is ALSO an untinted base color which is why it's only available in specific bases. I don't know for sure because I never use it. I read that Extra White looks best with cool colors and doesn't pair well with warm woods. 🙄 I specify Extra White a lot. This is a ridiculous statement.

@Marylee H Thank you so much for taking your time to break down interpretation of the colorgraphy chart. I understand a bit better all the different variables of the color choices. Is there are "favorable" set of objective measurements for west-facing rooms? I find that my colors tend to look more gray/blue/dingy in my living room even with the 4000k led lights (which I was finally able to find). I would like to add some warmth without going too yellow. Previously, I made the mistake of pairing Behr's Pebble Cream with Ultra Pair White trims - the mix of warm and cool(?) was a mess and enhanced the overall yellowness. Yet colors like SW's Aesthetic White looked too grey and too much "chroma" - when paired with Ultra Pure White trims, and BM's Glacier White and White Dove looked too dingy. It has been very difficult trying to find a neutral off-white color that is not too yellow without going too dingy (too much gray?) Should I go towards the Y of the Hue? Looking now at Benjamin Moore: Soft Chamois, Cloud White, Gentle Cream, Navajo White (BM, not SW) . I love this lady's colors: https://meganbellmade.com/blog/2020/9/17/our-super-kid-pet-friendly-white-couch-a-review-of-west-elms-harmony-sofa She used SW's Aesthetic White- it looks more like it's on the warm/beige side of greige on her walls, and too grey/dingy on my actual walls.