QUESTION: White wall color that matches the non-tiled part of "Nature's Glow" in white

"Nature's Glow" is a base game wall that comes in three swatches, all of which have white tile on the bottom and a white or off-white wall on the top. I'm trying to find another plain white wall (without tile on the bottom half) in the same shade of white as the first swatch (the one that looks almost blue in the swatch picker, not the tan or grey one). I think I've checked every white wall twice at this point and I can't find a single one that's the same shade. I can't even find another partially tiled or patterned wall with a matching white. I have about half of the packs and I'm sure this isn't a lighting glitch.

Does anyone know if there's a white wall that matches? Maybe in a pack I don't have yet?