Foggy Mist

The kind of neutral that changes name depending on the light, though the green cast underneath it stays put. 0475, from Vista Paint.

Chroma 3.9 is the whole difference: below four a color reads as grey, above ten the green cast takes over. The green cast is more noticeable under cool, daylight-balanced bulbs than under standard warm ones, which tend to mute it.

LRV 64.0 - comfortably in the range that suits a whole room rather than one wall. A safe whole-house choice when different rooms get different amounts of natural light, since neutrals shift the least across exposures.

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 26.3 points apart in light reflectance).

For anyone tied to a different brand, Benjamin Moore Cool Breeze (CSP-665) is the nearest stand-in, at a delta-E of 1.1. 6 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. Matte holds the color truest; a subtle sheen will lift it half a shade under lamps.

It is lighter than 67 percent of the Vista Paint range. Vista Paint lists it in the C codes, alongside 1,421 other colors.