You should post pics. Although, ultimately, you are the best judge of how the color is translating to your actual space. Device screens vary and pics are unreliable - but may help to understand your space and issues a bit better.

You can try adjusting your lighting - type of light sources, amount of light sources, placement of light sources, and/or temperature. You can try using a different finish or a different mix on the Creamy. ie you could try flat, versus the eggshell. And/or you could add more yellow to the paint mix.

Or sample some different colors.

As to why it is happening - there could be any number of reasons. It is not so unusual for same paint color to appear different based on application. Also, your existing Creamy trim may have yellowed a bit, since it‘s been on the walls for some time. Plus, who knows what original Creamy mix was used, ie percentages. Plus, who knows if there has been a change in the formulation/mix.

Did you have it color matched from maybe a different company. Try it in matte finish sometimes eggshell has just touch of sheen enough to change the look .

This is a photo. It's not as apparent as it looks in person but I think it's still noticeable.

I painted the bottom half of the Sherwin Williams sample sheet the color that they gave me and it looks lighter and cooler. The top of the sample sheet, IMO, does match the trim.

The background color is the sample.

Same photo with the color difference circled.

The pics are not showing really what ypu are seeing. Waht you see is going to have rule the choices I personally do not love cream walls so maybe the answer is a hint of color instaed like BM Healing Aloe which I cut 50% for clients to give just that hint of color it is really neutral and might be the answer.

I see the differences that you are talking about.

Send the pictures or take the pictures to the paint store, so that they can see what you are trying to match. They can adjust the Creamy formula and or make other paint color recommendations to match the trim. Also, use matte/flat, versus eggshell.

Not every 'mixologist' mixes paint the same.

although it is computerized in most cases, a dab more or less of each pigment goes into the base differentyl.

When purchasing a mix, get all you need at one time, and have the same person mix each can.

Kind of like dye lots in tile. Buy all the same dye lot, when they make a new batch, even with the same color(s) they turn out a bit differently.

... old paint fades and changes with the environment, touch ups often look different because either the base has changed you the wall has changed.

You may have to repaint a whole section so the difference isn't so noticeable. Sorry.

Everything you are saying is true, Lyn. Hopefully she will be able to match it closely enough though. 🤞🏼

You didn't pick the creamy for the trim. How long ago was it painted? Over time the look of the color can change, being washed, being near windows, definitely, it changes in the kitchen. Did you prime the walls?

How about going a bit darker with the recommended coordinate:

The house is not that old so less than 10 years ago. It's new to us.

I use a lot of pattern and color and wall art when I decorate so I'd like to create a light, uncluttered background for my things without having to paint the trim. I tried to pick colors lighter than creamy but they made the trim look dirty (I have another thread about it!)

That's why I am trying to make the creamy work as the wall color. It was suggested in the other thread and seemed like a good solution.

I just looked at your pics and comments again, Lynn. I see where you mention that you think the SW sample sheet ’does’ match your trim. And I would agree with you, based upon what I am seeing in your pics. It’s close.

You may need to buy the paint from someplace else, or have someone else at the store mix it. The mix that they gave you is not right; it is not your trim color nor is it the SW Creamy sample card color. Even if you use that same mix in matte, I believe the color would still be off.

I thought painting the walls Creamy in an eggshell finish would help unify the space, so I picked up a sample quart to test it.

If it's a Sample to Go jug, that could be the problem. I'd invest in an actual quart in the base and sheen you will be painting with before I'd spend time chasing down another color, buying samples, etc.

Lori, it was mixed at the store.

I looked at the labels and I think I see the problem. The formula on the new sample is very different (to my eyes) from the formula on the original can. Is there any reason why they would be different?

Sometimes brands change their formulas as their base/dyes change over the years. Also, different sheens can have a different white base to start. I had chosen Apricot for our dining room in eggshell, with satin stripes in the same Apricot. The next morning, the stripes were dry and looked like a completely different color. It wasn't just a hidden surprise seen only in certain lighted angles, like I had hoped. I was a creamy and slightly more tan version. I cried. I had to retape the areas I ripped off, prime over all my stripes, and get a totally different paint color for visible egg shell stripes. I went with Fire Ant.

Lynn, as I mentioned in my first comment, sometimes there can be a change in the company’s formula. Except - what they gave you is very different from the SW Creamy sample card - so I dont know if there has really been any formula change or if the store is just doing their own thing. :) Tell them you want the original formula/the one that’s on your can. Fortunately you have it to show them.