Grey Mist

The kind of neutral that changes name depending on the light, though the yellow-green cast underneath it stays put. 8315, from Vista Paint.

At 3.3 on the chroma scale, this is closer to grey than to color, though the yellow-green cast keeps it from being either. A warm bulb is the easiest fix if this reads colder than expected once it is on the wall.

53.0 on the light-reflectance scale puts it in the middle third, which is the part of the scale with the fewest surprises. It is the sort of color that goes on every wall of a house without feeling overwhelming.

Dunn-Edwards Lighthouse makes a good second wall color here - different enough to read as a real choice, close enough to still feel related (about 37.3 points apart in light reflectance).

Dunn-Edwards Ashwood (DE6290) runs close enough - delta-E 1.57 - that swapping brands should not change how the room looks. 5 other-brand colors land within delta-E 2 of this one - a well-populated part of the spectrum with several near-equivalents to choose from. Eggshell is a common middle ground here - enough durability for a lived-in room without the sheen that would draw attention to wall imperfections.

It is lighter than 56 percent of the Vista Paint range. The name is not unique: Behr HDC-CT-21 also sells a color called Grey Mist, and it is not the same shade. Vista Paint lists it in the K codes, alongside 1,318 other colors.