Thunder Gray (SW 7645)
Illustrative room. Screen colors vary; test a sample before you paint.
Thunder Gray (SW 7645) is a very deep, neutral brown from Sherwin-Williams: LRV 9, so it reflects about 9 percent of the light that hits it.
Colors that go with Thunder Gray
Four Sherwin-Williams colors picked for Thunder Gray by this site's color math: a trim white, a deeper brown, a quiet contrast from another family, a dark accent. Sherwin-Williams did not choose these pairings.
Closest match in every other brand
Each brand's closest color to Thunder 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 |
|---|---|---|---|---|---|
| Benjamin Moore | Dragon's Breath | 1547 | 9.2 | 0.7 | indistinguishable |
| Behr | Black Bean | 790D-7 | 8.9 | 1.0 | indistinguishable |
| Valspar | Dark Oasis | 6011-4 | 8 | 1.7 | very close |
| PPG Paints | Metropolis | 1006-7 | 10 | 3.5 | noticeably different |
Lighter and darker in Sherwin-Williams
The Sherwin-Williams brown colors nearest to Thunder Gray (LRV 9) by LRV.
Lighter than Thunder Gray
Darker than Thunder Gray
Color data
| Brand | Sherwin-Williams |
|---|---|
| Color code | SW 7645 |
| Hex | #57534C |
| RGB | 87, 83, 76 |
| HSL | 38°, 7%, 32% |
| LRV (light reflectance value) | 9 |
| Lab L*, a*, b* | 35.5, 0.2, 4.7 |
| Undertone | Warm |
| Temperature | neutral |
| Color family | Brown |
Same paint, two kinds of light
Thunder Gray (SW 7645), published as #57534C
#494A4A
#665C4C
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Sherwin-Williams
More from Sherwin-Williams
Common questions
- What is the LRV of Thunder Gray (SW 7645)?
- Thunder Gray has an LRV of 9. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Thunder Gray is a very deep color.
- What is the closest match to Thunder Gray in another brand?
- Dragon's Breath (BM 1547) from Benjamin Moore, at a deltaE of 0.7 (indistinguishable).
- Is Thunder Gray warm or cool?
- Sherwin-Williams lists Thunder Gray as neutral, with a Warm undertone. Its Lab b* value is 4.7; 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.