Cast Iron (SW 6202)
Illustrative room. Screen colors vary; test a sample before you paint.
Cast Iron (SW 6202) is a very deep, warm gray from Sherwin-Williams: LRV 12, so it reflects about 12 percent of the light that hits it.
Colors that go with Cast Iron
Four Sherwin-Williams colors picked for Cast Iron by this site's color math: a trim white, a deeper gray, 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 Cast Iron, 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 | Dark Olive | 2140-30 | 13.5 | 2.7 | noticeably different |
| Behr | Naturalism | MQ6-19 | 13.6 | 1.5 | very close |
| Valspar | Wetlands | 5007-2C | 14 | 1.8 | very close |
| PPG Paints | Plunge Pool | 1029-7 | 13 | 1.4 | very close |
Lighter and darker in Sherwin-Williams
The Sherwin-Williams gray colors nearest to Cast Iron (LRV 12) by LRV.
Lighter than Cast Iron
Darker than Cast Iron
Color data
| Brand | Sherwin-Williams |
|---|---|
| Color code | SW 6202 |
| Hex | #64645A |
| RGB | 100, 100, 90 |
| HSL | 60°, 5%, 37% |
| LRV (light reflectance value) | 12 |
| Lab L*, a*, b* | 42.1, -2.0, 5.7 |
| Undertone | Neutral |
| Temperature | warm |
| Color family | Gray |
Same paint, two kinds of light
Cast Iron (SW 6202), published as #64645A
#555B58
#736D5A
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Similar shades from Sherwin-Williams
Comparisons that include Cast Iron (SW 6202)
More from Sherwin-Williams
Common questions
- What is the LRV of Cast Iron (SW 6202)?
- Cast Iron has an LRV of 12. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Cast Iron is a very deep color.
- What is the closest match to Cast Iron in another brand?
- Plunge Pool (PPG 1029-7) from PPG Paints, at a deltaE of 1.4 (very close).
- Is Cast Iron warm or cool?
- Sherwin-Williams lists Cast Iron as warm, with a Neutral undertone. Its Lab b* value is 5.7; 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.