Castlegate (SW 9558)
Illustrative room. Screen colors vary; test a sample before you paint.
Castlegate (SW 9558) is a deep, neutral gray from Sherwin-Williams: LRV 37, so it reflects about 37 percent of the light that hits it.
Colors that go with Castlegate
Four Sherwin-Williams colors picked for Castlegate 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 Castlegate, 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 | Slate | CW-700 | 39.1 | 0.9 | indistinguishable |
| Behr | Silent Film | MQ5-30 | 37 | 0.5 | indistinguishable |
| Valspar | Stone Mason Gray | 4008-1C | 34 | 2.2 | very close |
| PPG Paints | Stepping Stone | 1010-4 | 38 | 1.8 | very close |
Lighter and darker in Sherwin-Williams
The Sherwin-Williams gray colors nearest to Castlegate (LRV 37) by LRV.
Lighter than Castlegate
Darker than Castlegate
Color data
| Brand | Sherwin-Williams |
|---|---|
| Color code | SW 9558 |
| Hex | #A0A5A5 |
| RGB | 160, 165, 165 |
| HSL | 180°, 3%, 64% |
| LRV (light reflectance value) | 37 |
| Lab L*, a*, b* | 67.4, -1.8, -0.6 |
| Undertone | Neutral |
| Temperature | neutral |
| Color family | Gray |
Same paint, two kinds of light
Castlegate (SW 9558), published as #A0A5A5
#8F9BA3
#B2AFA5
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 Castlegate (SW 9558)?
- Castlegate has an LRV of 37. LRV runs from 0 (black) to 100 (pure white) and measures the share of light a surface reflects, so Castlegate is a deep color.
- What is the closest match to Castlegate in another brand?
- Silent Film (Behr MQ5-30) from Behr, at a deltaE of 0.5 (indistinguishable).
- Is Castlegate warm or cool?
- Sherwin-Williams lists Castlegate as neutral, with a Neutral undertone. Its Lab b* value is -0.6; 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.