White Dove by Benjamie Moore is a good color. I'm sure SW has the same color.

It really is the current color on your walls that is throwing you off. I painted a gray over yellow walls once and just cried. Until every inch of yellow was covered, it really looked purple not gray. Ended up perfect but a couple inches of a color on a wall doesn't give you the right idea what the whole wall will look like.

we just did out entire 1st floor sherwin williams crushed ice and love it.. it is grey but light.. neutral - sherwin williams has a program that you pay $90 to have a paint color designer come to your house to help you choose the right colors; you will get a $50.00 card to use for paint so it ends up costing $40.00 - it is what we did and the designer was spot on with the color he chose.. we are very happy... our floors are called classico blanco and ae a greige color..

Sherwin Williams Silver Satin. Close to a white. Very clean and bright without being shockingly bright. I used it in 3 rooms in my new build and I love it. Just enough contrast with white trim.

I agree you need to either prime that wall and then test colors or better yet get some large poster boards and use one for each test .The nice thing about that is you can move them around to see how the colors look in different spaces. FYI I think a pale grayed / green is so much more neutral than beige . Gray Wisp BM is very pretty and neutral

The walls do need priming before painting over that yellow paint, so I would get that done, but, use the poster board for your paint samples, so you dont have to primer over them too.

For a warm neutral, consider SW Neutral Ground. It reads as a soft, warm, off-white.

I would suggest you try changing your bulbs and look at your colors again. When I remove the color cast from your room (assuming your baseboards are white), it looks like this:

This leads me to believe you have very warm bulbs turning everything pink.

We just did our whole first floor (ceilings too) in White Dove from Ben Moore. I love it.

I will tell you what i learned during my reno.. do not try to find a color on your existing wall paint.. prime a few sections of walls white with different lighting... then put your paint colors on...i actually spent a few hundred dollars choosing the right paint and the best thing i did was prime a few sections white and hire the color designer....