Iron Mountain (Behr N520-5)
Illustrative room. Screen colors vary; test a sample before you paint.
Iron Mountain (Behr N520-5) is a very deep, neutral gray from Behr: LRV 17.8, so it reflects about 18 percent of the light that hits it.
Colors that go with Iron Mountain
Four Behr colors picked for Iron Mountain by this site's color math: a trim white, a deeper gray, a quiet contrast from another family, a dark accent. Behr did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Iron Mountain, 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 | Westchester Gray | SW 2849 | 19 | 1.6 | very close |
| Benjamin Moore | Amherst Gray | HC-167 | 18.8 | 3.0 | noticeably different |
| Valspar | Rugged Suede | 4003-2B | 19 | 2.3 | very close |
| PPG Paints | Up In Smoke | 1010-6 | 16 | 2.9 | noticeably different |
Lighter and darker in Behr
The Behr gray colors nearest to Iron Mountain (LRV 17.8 (estimated)) by LRV.
Lighter than Iron Mountain
Darker than Iron Mountain
Color data
| Brand | Behr |
|---|---|
| Color code | N520-5 |
| Hex | #757574 |
| RGB | 117, 117, 116 |
| HSL | 60°, 0%, 46% |
| LRV (light reflectance value) | 17.8 (estimated from the hex) |
| Lab L*, a*, b* | 49.2, -0.2, 0.6 |
| Undertone | Neutral |
| Temperature | neutral |
| Color family | Gray |
Same paint, two kinds of light
Iron Mountain (Behr N520-5), published as #757574
#656C72
#857E74
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Behr
More from Behr
Common questions
- What is the LRV of Iron Mountain (Behr N520-5)?
- Iron Mountain has an LRV of 17.8 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Iron Mountain is a very deep color.
- What is the closest match to Iron Mountain in another brand?
- Westchester Gray (SW 2849) from Sherwin-Williams, at a deltaE of 1.6 (very close).
- Is Iron Mountain warm or cool?
- Behr lists Iron Mountain as neutral, with a Neutral undertone. Its Lab b* value is 0.6; a higher b* is warmer and yellower, a lower one cooler and bluer.
Sources: hex as published by the manufacturer, via PaintDB (CC BY 4.0); LRV is not published by Behr for this color and is estimated here from the color's own hex value. 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.