Grey River Rock (Behr HDC-SM16-02)
Illustrative room. Screen colors vary; test a sample before you paint.
Grey River Rock (Behr HDC-SM16-02) is a deep, neutral gray from Behr: LRV 34.8, so it reflects about 35 percent of the light that hits it.
Colors that go with Grey River Rock
Four Behr colors picked for Grey River Rock 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 Grey River Rock, 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 | Castlegate | SW 9558 | 37 | 2.0 | very close |
| Benjamin Moore | Cobblestone Path | 1606 | 37.3 | 1.4 | very close |
| Valspar | Winter Flannel | 4007-1C | 34 | 1.8 | very close |
| PPG Paints | Ufo | 1011-4 | 34 | 2.5 | noticeably different |
Lighter and darker in Behr
The Behr gray colors nearest to Grey River Rock (LRV 34.8 (estimated)) by LRV.
Lighter than Grey River Rock
Darker than Grey River Rock
Color data
| Brand | Behr |
|---|---|
| Color code | HDC-SM16-02 |
| Hex | #99A1A1 |
| RGB | 153, 161, 161 |
| HSL | 180°, 4%, 62% |
| LRV (light reflectance value) | 34.8 (estimated from the hex) |
| Lab L*, a*, b* | 65.6, -2.8, -1.0 |
| Undertone | Neutral |
| Temperature | neutral |
| Color family | Gray |
Same paint, two kinds of light
Grey River Rock (Behr HDC-SM16-02), published as #99A1A1
#88979F
#ABABA1
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 Grey River Rock (Behr HDC-SM16-02)?
- Grey River Rock has an LRV of 34.8 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Grey River Rock is a deep color.
- What is the closest match to Grey River Rock in another brand?
- Cobblestone Path (BM 1606) from Benjamin Moore, at a deltaE of 1.4 (very close).
- Is Grey River Rock warm or cool?
- Behr lists Grey River Rock as neutral, with a Neutral undertone. Its Lab b* value is -1.0; 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.