Why not take a beige tile to the local paint store to be color-matched - Then have them mix a lighter version of that color?

Great idea! Thank you!

Why don't you try Benjamin Moore Mountain Peak White. I've used it on several jobs & my own home. I feel it's the cleanest white that is warm but not yellow. Good Luck!

Color match the two shades of floor tile. Paint the wall in these two shades,
horizontally, starting with the darker, and alternate, up the wall, each swath about three, or so, times the width of the floor tile. Work out the spacing to please your eye.
Or do as bepsf suggests.

Hi joamie, you can try Benjamin Moore: "Hint of Mint" with the floor sample you have as a start.

Try Silver Satin OC-26 or Calm OC-22 by Benjamin Moore. Nice floor!

I have a few go-to Benjamin Moore colors that might work - worth getting a sample at least: try Cedar Key and Revere Pewter.

Sherwin Williams Kilm Beige is a nice soft, neutral color

Home Depot Behr's Swiss Coffee (a creamy white) might work.

Maybe a timber skirting stained to match a dark wenge colour with the wall in a colour to match the ‘chocolate brown’ of the floor tile and then to add a focal point an interesting piece of 3d artwork or vinyl wall sticker?

BM Almond Bisque 1/2 tinted gallon. This colour has a chameleons nature.

Whatever white you choose, make sure that the base formula is white, not tinted white.

Maybe a cream but then again thats not a very clean and crisp colour. Try make a bright red????? Like the red in this logo :)

You might want to try the gray family, but don't be afraid, it doesn't have to be gray. Gray is the new neutral tone. Try a slate blue in a light hue. Just go to gray tones Sherwin Williams has a huge selection. Just something with a slight gray undertone or puddy. It won't come up yellow at all. Chocolate and blue are one of my favorite schemes.

Northstar by Sherwin Williams is a beautiful gray with an undertone of blue. Looks great with beige and chocolate brown.