Color spec
| Brand | Sherwin-Williams |
| Name | Cornwall Slate |
| SKU | SW 9131 |
| Hex | #949488 |
| RGB | 148, 148, 136 |
| HSL | 60°, 5%, 56% |
| LRV | 29 |
| Undertone | warm yellow tone |
| Family | Gray |
About Sherwin-Williams Cornwall Slate
Cornwall Slate sits in the mid-range at LRV 29, so it shifts visibly through the day — lighter and more open in morning light, deeper and moodier after dark. Because it carries almost no measurable hue, it stays a true neutral and pairs cleanly with nearly any trim or floor. South-facing rooms will pull it lighter and warmer, while north light cools it down.
Cornwall Slate is versatile enough for full rooms but has enough depth to anchor a space, so it suits living rooms, bedrooms and cabinetry alike. Grays like this read as a modern neutral and sit comfortably alongside both warm woods and cool metals.
Closest matches by brand
16 brands within ΔE 5The closest matches per brand by ΔE2000, computed against each brand's full deck. Only colors within ΔE 5 (close enough to substitute on a wall) are shown — brands with no real match are left off. Tap any swatch for its full single-color spec; tap the brand title to browse all gray from that brand.
Behr
Benjamin Moore
Valspar
PPG / Glidden
Glidden
HGTV Home by Sherwin-Williams
Dunn-Edwards
Magnolia Home
Farrow & Ball
Diamond Vogel
Hirshfield's
C2 Paint
Clare
Portola Paints
Rust-Oleum
Kompozit
Similar Sherwin-Williams colors
closest in the Sherwin-Williams deckThe nearest shades to Cornwall Slate within Sherwin-Williams's own range, ranked by perceptual color distance — useful when you want the same look a touch lighter, darker, or warmer.
Coordinated palette
Generated by hue-rotating #949488 in HSL space. Pair Cornwall Slate with one accent and one neutral — the swatches below are starting points, not final picks.
Accessibility (WCAG contrast)
WCAG 2.1: AA = 4.5:1 normal text · AA Large = 3:1 large text · AAA = 7:1 normal text.
Sherwin-Williams Cornwall Slate Equivalents at Other Brands
Matching Cornwall Slate from a different paint counter? Below is the single closest color in each major US deck and how close it really is. Remember that any paint store can also custom-tint Sherwin-Williams SW 9131 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Behr Equivalent of Cornwall Slate
Behr's nearest match is Shady Willow (ECC-36-1), visually identical in normal room light (ΔE 1.68). It sits at the same lightness (LRV 30 vs 29) and carries a cool green undertone, so it substitutes for Cornwall Slate without repainting risk. See the full Shady Willow swatch →
Benjamin Moore Equivalent of Cornwall Slate
Benjamin Moore's nearest match is Storm Cloud Gray (2140-40), visually identical in normal room light (ΔE 1.35). It sits at the same lightness (LRV 29 vs 29) and carries a warm yellow undertone, so it substitutes for Cornwall Slate without repainting risk. See the full Storm Cloud Gray swatch →
Valspar Equivalent of Cornwall Slate
Valspar's nearest match is Gray Expose (5007-2A), visually identical in normal room light (ΔE 1.11). It runs slightly lighter (LRV 30.6 vs 29) and carries a warm yellow undertone, so it substitutes for Cornwall Slate without repainting risk. See the full Gray Expose swatch →
PPG / Glidden Equivalent of Cornwall Slate
At PPG / Glidden, the closest color to Cornwall Slate is Steeped Tea (PPG0999-4) — very close at ΔE 2.86, though not an exact twin. It sits at the same lightness (LRV 30 vs 29) and carries a warm red-orange undertone; sample both side by side if the room gets strong natural light. See the full Steeped Tea swatch →
Glidden Equivalent of Cornwall Slate
At Glidden, the closest color to Cornwall Slate is Steeped Tea (PPG0999-4) — very close at ΔE 2.7, though not an exact twin. It sits at the same lightness (LRV 30 vs 29) and carries a warm red-orange undertone; sample both side by side if the room gets strong natural light. See the full Steeped Tea swatch →
HGTV Home by Sherwin-Williams Equivalent of Cornwall Slate
The closest HGTV Home by Sherwin-Williams equivalent of Cornwall Slate is Marsh Grasses (HGSW 3274). At ΔE 0 the two are indistinguishable on a wall — it carries the same warm yellow undertone and sits at the same lightness (LRV 29 vs 29). If HGTV Home by Sherwin-Williams is your counter, order Marsh Grasses and you'll get the same color. See the full Marsh Grasses swatch →
Dunn-Edwards Equivalent of Cornwall Slate
The closest Dunn-Edwards equivalent of Cornwall Slate is Dapple Gray (DET511). At ΔE 0.93 the two are indistinguishable on a wall — it carries the same warm yellow undertone and sits at the same lightness (LRV 29 vs 29). If Dunn-Edwards is your counter, order Dapple Gray and you'll get the same color. See the full Dapple Gray swatch →
Magnolia Home Equivalent of Cornwall Slate
Magnolia Home has no exact twin of Cornwall Slate. The nearest is Before & After (JG-146) at ΔE 3.59 — close, but the difference shows next to trim and in side light. It runs slightly darker (LRV 27 vs 29). Compare large swatches before substituting. See the full Before & After swatch →
Farrow & Ball Equivalent of Cornwall Slate
Farrow & Ball has no exact twin of Cornwall Slate. The nearest is Chemise (NO. 216) at ΔE 4.47 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 29 vs 29). Compare large swatches before substituting. See the full Chemise swatch →
Diamond Vogel Equivalent of Cornwall Slate
Diamond Vogel has no exact twin of Cornwall Slate. The nearest is Sultry Castle (0562) at ΔE 4.83 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 28 vs 29). Compare large swatches before substituting. See the full Sultry Castle swatch →
Hirshfield's Equivalent of Cornwall Slate
Hirshfield's's nearest match is Everlasting Sage (0422), visually identical in normal room light (ΔE 1.11). It runs slightly lighter (LRV 31 vs 29) and carries a warm yellow undertone, so it substitutes for Cornwall Slate without repainting risk. See the full Everlasting Sage swatch →
C2 Paint Equivalent of Cornwall Slate
At C2 Paint, the closest color to Cornwall Slate is Hammered (C2-889) — very close at ΔE 2.76, though not an exact twin. It sits at the same lightness (LRV 30 vs 29) and carries a warm red-orange undertone; sample both side by side if the room gets strong natural light. See the full Hammered swatch →
Clare Equivalent of Cornwall Slate
At Clare, the closest color to Cornwall Slate is Shade (PNT100-MD-14) — very close at ΔE 2.87, though not an exact twin. It sits at the same lightness (LRV 28 vs 29) and carries a true neutral undertone; sample both side by side if the room gets strong natural light. See the full Shade swatch →
Portola Paints Equivalent of Cornwall Slate
Portola Paints has no exact twin of Cornwall Slate. The nearest is Bronson (BRONSON) at ΔE 3.58 — close, but the difference shows next to trim and in side light. It runs slightly lighter (LRV 31 vs 29). Compare large swatches before substituting. See the full Bronson swatch →
Rust-Oleum Equivalent of Cornwall Slate
At Rust-Oleum, the closest color to Cornwall Slate is Country Gray (285141) — very close at ΔE 2.94, though not an exact twin. It sits at the same lightness (LRV 29 vs 29) and carries a true neutral undertone; sample both side by side if the room gets strong natural light. See the full Country Gray swatch →
Kompozit Equivalent of Cornwall Slate
Kompozit's nearest match is Everlasting Sage (0422), visually identical in normal room light (ΔE 1.11). It sits at the same lightness (LRV 30 vs 29) and carries a warm yellow undertone, so it substitutes for Cornwall Slate without repainting risk. See the full Everlasting Sage swatch →