Knotweed (Behr QE-37)
Illustrative room. Screen colors vary; test a sample before you paint.
Knotweed (Behr QE-37) is a deep, warm yellow from Behr: LRV 21, so it reflects about 21 percent of the light that hits it.
Colors that go with Knotweed
Four Behr colors picked for Knotweed by this site's color math: a trim white, a deeper yellow, 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 Knotweed, 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 | Avocado | SW 2861 | 20 | 3.2 | noticeably different |
| Benjamin Moore | Sussex Green | HC-109 | 20.9 | 1.2 | very close |
| Valspar | Ironclad | 5008-2B | 19 | 2.4 | noticeably different |
| PPG Paints | Tortuga | 1032-5 | 22 | 2.4 | noticeably different |
Lighter and darker in Behr
The Behr yellow colors nearest to Knotweed (LRV 21 (estimated)) by LRV.
Lighter than Knotweed
Darker than Knotweed
Color data
| Brand | Behr |
|---|---|
| Color code | QE-37 |
| Hex | #837F67 |
| RGB | 131, 127, 103 |
| HSL | 51°, 12%, 46% |
| LRV (light reflectance value) | 21 (estimated from the hex) |
| Lab L*, a*, b* | 52.9, -2.7, 13.6 |
| Undertone | Warm Yellow |
| Temperature | warm |
| Color family | Yellow |
Same paint, two kinds of light
Knotweed (Behr QE-37), published as #837F67
#747666
#938866
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 Knotweed (Behr QE-37)?
- Knotweed has an LRV of 21 (estimated from its hex value). LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Knotweed is a deep color.
- What is the closest match to Knotweed in another brand?
- Sussex Green (BM HC-109) from Benjamin Moore, at a deltaE of 1.2 (very close).
- Is Knotweed warm or cool?
- Behr lists Knotweed as warm, with a Warm Yellow undertone. Its Lab b* value is 13.6; 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.