Nocturnal Gray (BM 2135-30)
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Nocturnal Gray (BM 2135-30) is a very deep, cool blue from Benjamin Moore: LRV 13.8, so it reflects about 14 percent of the light that hits it.
Colors that go with Nocturnal Gray
Four Benjamin Moore colors picked for Nocturnal Gray by this site's color math: a trim white, a deeper blue, 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 Nocturnal 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 | Rain Cloud | SW 9639 | 11 | 1.8 | very close |
| Behr | Whale Gray | N470-6 | 12.9 | 1.4 | very close |
| Valspar | Cobalt Cannon | 5001-2C | 12 | 3.4 | noticeably different |
| PPG Paints | Silent Night | 1153-6 | 13 | 2.2 | very close |
Lighter and darker in Benjamin Moore
The Benjamin Moore blue colors nearest to Nocturnal Gray (LRV 13.8) by LRV.
Lighter than Nocturnal Gray
Darker than Nocturnal Gray
Color data
| Brand | Benjamin Moore |
|---|---|
| Color code | 2135-30 |
| Hex | #55656B |
| RGB | 85, 101, 107 |
| HSL | 196°, 11%, 38% |
| LRV (light reflectance value) | 13.8 |
| Lab L*, a*, b* | 41.7, -4.6, -5.4 |
| Undertone | Cool |
| Temperature | cool |
| Color family | Blue |
Same paint, two kinds of light
Nocturnal Gray (BM 2135-30), published as #55656B
#445C69
#666E6B
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Benjamin Moore
More from Benjamin Moore
Common questions
- What is the LRV of Nocturnal Gray (BM 2135-30)?
- Nocturnal Gray has an LRV of 13.8. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Nocturnal Gray is a very deep color.
- What is the closest match to Nocturnal Gray in another brand?
- Whale Gray (Behr N470-6) from Behr, at a deltaE of 1.4 (very close).
- Is Nocturnal Gray warm or cool?
- Benjamin Moore lists Nocturnal Gray as cool, with a Cool undertone. Its Lab b* value is -5.4; 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.