Color spec
| Brand | PPG / Glidden |
| Name | Castle Stone |
| SKU | PPG1128-7 |
| Hex | #525646 |
| RGB | 82, 86, 70 |
| HSL | 75°, 10%, 31% |
| LRV | 9 |
| Undertone | cool green tone |
| Family | Gray |
About PPG / Glidden Castle Stone
At LRV 9, Castle Stone is about as dark as paint gets — it reads near-black on a wall and reveals its character only in direct daylight or under warm bulbs. Its green undertone is the part to watch: it gets picked up by whatever sits next to it, so test it against your trim, floor and the room's main light before committing. In rooms with little natural light it can feel heavy, so reserve it for spaces you want to feel enveloping.
Castle Stone earns its keep as a statement: accent walls, a front door, cabinetry, a moody powder room, or exterior trim where you want sharp contrast. Grays like this read as a modern neutral and sit comfortably alongside both warm woods and cool metals.
Closest matches by brand
15 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.
Sherwin-Williams
Behr
Benjamin Moore
Valspar
Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Dunn-Edwards
Magnolia Home
Farrow & Ball
Diamond Vogel
Hirshfield's
Rodda
Portola Paints
Kompozit
Similar PPG / Glidden colors
closest in the PPG / Glidden deckThe nearest shades to Castle Stone within PPG / Glidden'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 #525646 in HSL space. Pair Castle Stone 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.
PPG / Glidden Castle Stone Equivalents at Other Brands
Matching Castle Stone 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 PPG / Glidden PPG1128-7 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Castle Stone
At Sherwin-Williams, the closest color to Castle Stone is Vogue Green (SW 65) — very close at ΔE 3.37, though not an exact twin. It sits at the same lightness (LRV 9 vs 9) and carries a cool green undertone; sample both side by side if the room gets strong natural light. See the full Vogue Green swatch →
Behr Equivalent of Castle Stone
The closest Behr equivalent of Castle Stone is Freshwater Marsh (ECC-37-3). At ΔE 0.96 the two are indistinguishable on a wall — it carries the same cool green undertone and sits at the same lightness (LRV 9 vs 9). If Behr is your counter, order Freshwater Marsh and you'll get the same color. See the full Freshwater Marsh swatch →
Benjamin Moore Equivalent of Castle Stone
At Benjamin Moore, the closest color to Castle Stone is Tuscany Green (2140-20) — very close at ΔE 2.69, though not an exact twin. It sits at the same lightness (LRV 10 vs 9) and carries a warm yellow undertone; sample both side by side if the room gets strong natural light. See the full Tuscany Green swatch →
Valspar Equivalent of Castle Stone
Valspar's nearest match is Flora (5004-2C), visually identical in normal room light (ΔE 1.18). It sits at the same lightness (LRV 9.3 vs 9) and carries a cool green undertone, so it substitutes for Castle Stone without repainting risk. See the full Flora swatch →
Glidden Equivalent of Castle Stone
The closest Glidden equivalent of Castle Stone is Castle Stone (PPG1128-7). At ΔE 0.72 the two are indistinguishable on a wall — it carries the same cool green undertone and sits at the same lightness (LRV 9 vs 9). If Glidden is your counter, order Castle Stone and you'll get the same color. See the full Castle Stone swatch →
Dutch Boy Equivalent of Castle Stone
Dutch Boy has no exact twin of Castle Stone. The nearest is Ironside (422-7DB) at ΔE 4.87 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 9 vs 9). Compare large swatches before substituting. See the full Ironside swatch →
Magnolia Home Equivalent of Castle Stone
Magnolia Home's nearest match is Step Stool Green (JG-160), visually identical in normal room light (ΔE 1.82). It sits at the same lightness (LRV 8 vs 9) and carries a warm yellow undertone, so it substitutes for Castle Stone without repainting risk. See the full Step Stool Green swatch →
Diamond Vogel Equivalent of Castle Stone
Diamond Vogel's nearest match is Clover Patch (0431), visually identical in normal room light (ΔE 1.39). It sits at the same lightness (LRV 8 vs 9) and carries a cool green undertone, so it substitutes for Castle Stone without repainting risk. See the full Clover Patch swatch →
Hirshfield's Equivalent of Castle Stone
Hirshfield's has no exact twin of Castle Stone. The nearest is Evening Dove (0451) at ΔE 3.5 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 10 vs 9). Compare large swatches before substituting. See the full Evening Dove swatch →
Rodda Equivalent of Castle Stone
Rodda has no exact twin of Castle Stone. The nearest is Garden Moss (R048) at ΔE 4.53 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 9 vs 9). Compare large swatches before substituting. See the full Garden Moss swatch →
Portola Paints Equivalent of Castle Stone
At Portola Paints, the closest color to Castle Stone is Wonderland (WONDERLAND) — very close at ΔE 2.83, though not an exact twin. It sits at the same lightness (LRV 10 vs 9) and carries a warm yellow undertone; sample both side by side if the room gets strong natural light. See the full Wonderland swatch →
Kompozit Equivalent of Castle Stone
Kompozit has no exact twin of Castle Stone. The nearest is Evening Dove (0451) at ΔE 3.5 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 8 vs 9). Compare large swatches before substituting. See the full Evening Dove swatch →