Let me give you an insider tip from a certified color expert;) First, you don't want to paint the wall. If you are willing to put a little more into it. I promise you will find your color. Buy a pack of 11x14 poster boards. Then just looking at that the different views you have shown, the color is going in several different rooms. With your granite, white subway tile, white cabinets and dark mocha floors I prefer to lighten the spaces, contrast the floor and compliment the cabinets and subway tile. So I would focus on finding your best greiges or light taupes. I would not do white or off white, too stark. Plus, we don't even know if your tile and cabinets are truely off white until you compare them against a control sample(white piece of paper).

Second, I would suggest sherwin williams drift of mist(greige) or egret (taupe greige)

. If you are Benjamin Moore user, pale oak(taupe) or sea salt (greige/darker than others suggested)

Lastly, buy small paint pots (if you don't already have them in your samples) and I try to narrow down to 3 and then paint 2 coats of the sample pots on the 11x14 white poster boards. Then you are going to use one of the 11x14 boards UNPAINTED to block out the elements that are not staying in the space. Now place the 11x14 painted samples vertically where you want to change the color and place the white poster board behind it. And then individually next to your fixed elements(floor, counter, tile) too. Let me know how you mange on finding the right color.

Also, take a good look at a lot of color charts, there are a lot of colors for walls, that are not boring beige, gray or greige.