Liquid Mercury (Behr N510-5)
Illustrative room. Screen colors vary; test a sample before you paint.
Liquid Mercury (Behr N510-5) is a very deep, neutral gray from Behr: LRV 19.3, so it reflects about 19 percent of the light that hits it.
Colors that go with Liquid Mercury
Four Behr colors picked for Liquid Mercury 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 Liquid Mercury, 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 | Before the Storm | SW 9564 | 18 | 2.0 | very close |
| Benjamin Moore | Smoke Gray | 2120-40 | 21.1 | 0.7 | indistinguishable |
| Valspar | Iron Frost | 4007-2B | 19 | 1.5 | very close |
| PPG Paints | Favorite Flannel | 10-19 | 18 | 1.6 | very close |
Lighter and darker in Behr
The Behr gray colors nearest to Liquid Mercury (LRV 19.3 (estimated)) by LRV.
Lighter than Liquid Mercury
Darker than Liquid Mercury
Color data
| Brand | Behr |
|---|---|
| Color code | N510-5 |
| Hex | #757A80 |
| RGB | 117, 122, 128 |
| HSL | 213°, 4%, 48% |
| LRV (light reflectance value) | 19.3 (estimated from the hex) |
| Lab L*, a*, b* | 51.0, -0.6, -3.9 |
| Undertone | Cool |
| Temperature | neutral |
| Color family | Gray |
Same paint, two kinds of light
Liquid Mercury (Behr N510-5), published as #757A80
#64717E
#868380
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 Liquid Mercury (Behr N510-5)?
- Liquid Mercury has an LRV of 19.3 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Liquid Mercury is a very deep color.
- What is the closest match to Liquid Mercury in another brand?
- Smoke Gray (BM 2120-40) from Benjamin Moore, at a deltaE of 0.7 (indistinguishable).
- Is Liquid Mercury warm or cool?
- Behr lists Liquid Mercury as neutral, with a Cool undertone. Its Lab b* value is -3.9; 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.