Rock of Ages

Neutral enough to sit under other colors, with a yellow cast underneath. Vista Paint files it as 8430.

Chroma 6.8 means the color content is small, which is exactly why the yellow cast matters so much - there is nothing else here to distract from it. It holds up in a north-facing room, which is where warmth is usually missing.

LRV 16.0 - comfortably in the range that suits a whole room rather than one wall. Works as a backdrop for artwork, furniture, or anything else in the room that is meant to stand out more than the walls do.

For a secondary wall, Vista Paint October Sky gives a natural step up in brightness without feeling like a mismatch (roughly 34 LRV points apart).

For anyone tied to a different brand, Behr Dusty Mountain (790D-6) is the nearest stand-in, at a delta-E of 1.45. Only 2 other-brand colors land within delta-E 2 of this one, which makes it comparatively unusual. 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 14 percent of the Vista Paint range. Among grays it is one of the strongest: only 1 percent of them carry more colour. Vista Paint lists it in the K codes, alongside 1,318 other colors.