Mountain Boulder
M340 · #BAB3B0 · LRV 45.7 — warm red tone, mid-tone — versatile but shifts visibly with light.
What Color Is Mountain Boulder, Really?
Mountain Boulder reads as a warm red tone — mid-tone — versatile but shifts visibly with light. The notes below cover how Valspar M340 behaves in different light and the closest matches at competing US brands.
Best Rooms and Uses for Mountain Boulder
Mountain Boulder is versatile enough for full rooms but has enough depth to anchor a space, so it suits living rooms, bedrooms and cabinetry alike. Grays like this read as a modern neutral and sit comfortably alongside both warm woods and cool metals.
How Lighting Changes Mountain Boulder
Mountain Boulder sits in the mid-range at LRV 45.7, so it shifts visibly through the day — lighter and more open in morning light, deeper and moodier after dark. Its red undertone is the part to watch: it gets picked up by whatever sits next to it, so test it against your trim, floor and the room's main light before committing. South-facing rooms will pull it lighter and warmer, while north light cools it down.
Most complaints about Mountain Boulder are a light mismatch. Upload a photo of your actual room and see it on your walls — then ask for the same wall in north light or evening lamps before you buy a single sample.
Need It From Another Brand?
Any paint counter can custom-tint Valspar M340 directly. If you would rather stay in one brand's own deck, these are the closest stock matches, measured as ΔE2000. Under 2 is a difference you will not see on the wall.
| Brand | Closest color | ΔE | LRV | |
|---|---|---|---|---|
| Sherwin-Williams | Requisite GraySW 7023 · Sherwin-Williams | 3.2 | 45 | Color page → |
| Behr | AshesUL260-9 · Behr | 3.0 | 46 | Color page → |
| Benjamin Moore | NightingaleAF-670 · Benjamin Moore | 2.4 | 46 | Color page → |
| PPG / Glidden | Gray MarblePPG1002-4 · PPG / Glidden | 0.5 | 46 | Color page → |
| Glidden | Gray MarblePPG1002-4 · Glidden | 1.0 | 46 | Color page → |
| Dutch Boy | Gracious Gray444-2DB · Dutch Boy | 3.2 | 46 | Color page → |
Similar Valspar Colors
The nearest shades to Mountain Boulder within Valspar's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
WCAG 2.1: AA is 4.5 : 1 for normal text, 3 : 1 for large text, AAA is 7 : 1.
Coordinated palette
Generated by hue-rotating #BAB3B0 in HSL space. Pair Mountain Boulder with one accent and one neutral — the swatches below are starting points, not final picks.
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