Smokestack Gray (BM 2131-40)
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Smokestack Gray (BM 2131-40) is a deep, neutral gray from Benjamin Moore: LRV 22.8, so it reflects about 23 percent of the light that hits it.
Colors that go with Smokestack Gray
Four Benjamin Moore colors picked for Smokestack Gray by this site's color math: a trim white, a deeper gray, a quiet contrast from another family, a dark accent. Benjamin Moore did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Smokestack Gray, ranked by CIEDE2000 (deltaE): under 1.0 is indistinguishable, 1.0 to 2.3 very close, 2.3 to 5 noticeably different, over 5 clearly different.
| Brand | Closest color | Code | LRV | deltaE | How close |
|---|---|---|---|---|---|
| Sherwin-Williams | Blustery Sky | SW 9140 | 22 | 1.9 | very close |
| Behr | Courtyard Blue | BXC-48 | 20.6 | 0.9 | indistinguishable |
| Valspar | Academy Gray | 5001-2A | 22 | 1.6 | very close |
| PPG Paints | Garrison Gray | 1039-5 | 23 | 2.8 | noticeably different |
Lighter and darker in Benjamin Moore
The Benjamin Moore gray colors nearest to Smokestack Gray (LRV 22.8) by LRV.
Lighter than Smokestack Gray
Darker than Smokestack Gray
Color data
| Brand | Benjamin Moore |
|---|---|
| Color code | 2131-40 |
| Hex | #728287 |
| RGB | 114, 130, 135 |
| HSL | 194°, 8%, 49% |
| LRV (light reflectance value) | 22.8 |
| Lab L*, a*, b* | 53.3, -4.7, -4.7 |
| Undertone | Cool |
| Temperature | neutral |
| Color family | Gray |
Same paint, two kinds of light
Smokestack Gray (BM 2131-40), published as #728287
#617985
#848B87
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Benjamin Moore
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Common questions
- What is the LRV of Smokestack Gray (BM 2131-40)?
- Smokestack Gray has an LRV of 22.8. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Smokestack Gray is a deep color.
- What is the closest match to Smokestack Gray in another brand?
- Courtyard Blue (Behr BXC-48) from Behr, at a deltaE of 0.9 (indistinguishable).
- Is Smokestack Gray warm or cool?
- Benjamin Moore lists Smokestack Gray as neutral, with a Cool undertone. Its Lab b* value is -4.7; a higher b* is warmer and yellower, a lower one cooler and bluer.
Sources: LRV and hex as published by the manufacturer, via PaintDB (CC BY 4.0). Color differences are CIEDE2000 values computed by this site from the hex values (data snapshot 2026-10-01). Color names and codes belong to their manufacturers.