Color spec
| Brand | Dutch Boy |
| Name | Limestone Slate |
| SKU | 422-6DB |
| Hex | #6D6C62 |
| RGB | 109, 108, 98 |
| HSL | 55°, 5%, 41% |
| LRV | 15 |
| Undertone | warm yellow tone |
| Family | Gray |
About Dutch Boy Limestone Slate
With an LRV of 15, Limestone Slate is a deep, dramatic shade. It soaks up light in north-facing rooms and looks richest where strong daylight hits it. Because it carries almost no measurable hue, it stays a true neutral and pairs cleanly with nearly any trim or floor. Warm artificial light softens it; cool LED can make it look flat, so match your bulbs to the mood you want.
Limestone Slate works best as a feature — a single wall, built-ins, a study or dining room — rather than wrapping a whole bright space. 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.
Sherwin-Williams
Behr
Benjamin Moore
Valspar
PPG / Glidden
Glidden
HGTV Home by Sherwin-Williams
Dunn-Edwards
Magnolia Home
Farrow & Ball
Diamond Vogel
Hirshfield's
Rodda
C2 Paint
Clare
Kompozit
Similar Dutch Boy colors
closest in the Dutch Boy deckThe nearest shades to Limestone Slate within Dutch Boy'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 #6D6C62 in HSL space. Pair Limestone 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.
Dutch Boy Limestone Slate Equivalents at Other Brands
Matching Limestone 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 Dutch Boy 422-6DB directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Limestone Slate
The closest Sherwin-Williams equivalent of Limestone Slate is Thunderous (SW 6201). At ΔE 0 the two are indistinguishable on a wall — it carries the same warm yellow undertone and sits at the same lightness (LRV 15 vs 15). If Sherwin-Williams is your counter, order Thunderous and you'll get the same color. See the full Thunderous swatch →
Behr Equivalent of Limestone Slate
At Behr, the closest color to Limestone Slate is Kindling (N200-6) — very close at ΔE 3.14, though not an exact twin. It sits at the same lightness (LRV 15 vs 15) and carries a true neutral undertone; sample both side by side if the room gets strong natural light. See the full Kindling swatch →
Benjamin Moore Equivalent of Limestone Slate
Benjamin Moore's nearest match is Sharkskin (2139-30), visually identical in normal room light (ΔE 1.88). It sits at the same lightness (LRV 16 vs 15) and carries a warm yellow undertone, so it substitutes for Limestone Slate without repainting risk. See the full Sharkskin swatch →
Valspar Equivalent of Limestone Slate
The closest Valspar equivalent of Limestone Slate is Brandenburg Gate (8004-27F). At ΔE 0 the two are indistinguishable on a wall — it carries the same warm yellow undertone and sits at the same lightness (LRV 15 vs 15). If Valspar is your counter, order Brandenburg Gate and you'll get the same color. See the full Brandenburg Gate swatch →
PPG / Glidden Equivalent of Limestone Slate
At PPG / Glidden, the closest color to Limestone Slate is Armory (PPG1009-6) — very close at ΔE 2.03, though not an exact twin. It sits at the same lightness (LRV 15 vs 15) and carries a true neutral undertone; sample both side by side if the room gets strong natural light. See the full Armory swatch →
Glidden Equivalent of Limestone Slate
At Glidden, the closest color to Limestone Slate is Armory (PPG1009-6) — very close at ΔE 2.16, though not an exact twin. It sits at the same lightness (LRV 15 vs 15) and carries a true neutral undertone; sample both side by side if the room gets strong natural light. See the full Armory swatch →
HGTV Home by Sherwin-Williams Equivalent of Limestone Slate
HGTV Home by Sherwin-Williams has no exact twin of Limestone Slate. The nearest is Cocoon (HGSW 3222) at ΔE 3.79 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 15 vs 15). Compare large swatches before substituting. See the full Cocoon swatch →
Dunn-Edwards Equivalent of Limestone Slate
At Dunn-Edwards, the closest color to Limestone Slate is Iron-ic (DET611) — very close at ΔE 3.13, though not an exact twin. It sits at the same lightness (LRV 15 vs 15) and carries a true neutral undertone; sample both side by side if the room gets strong natural light. See the full Iron-ic swatch →
Magnolia Home Equivalent of Limestone Slate
At Magnolia Home, the closest color to Limestone Slate is Wellington Green (JG-66) — very close at ΔE 3.33, though not an exact twin. It sits at the same lightness (LRV 14 vs 15) and carries a cool green undertone; sample both side by side if the room gets strong natural light. See the full Wellington Green swatch →
Diamond Vogel Equivalent of Limestone Slate
At Diamond Vogel, the closest color to Limestone Slate is Tornado Wind (0584) — very close at ΔE 2.86, though not an exact twin. It sits at the same lightness (LRV 14 vs 15) and carries a true neutral undertone; sample both side by side if the room gets strong natural light. See the full Tornado Wind swatch →
Hirshfield's Equivalent of Limestone Slate
Hirshfield's's nearest match is River God (0450), visually identical in normal room light (ΔE 1.63). It runs slightly lighter (LRV 17 vs 15) and carries a warm yellow undertone, so it substitutes for Limestone Slate without repainting risk. See the full River God swatch →
C2 Paint Equivalent of Limestone Slate
C2 Paint's nearest match is Wildwood (C2-854), visually identical in normal room light (ΔE 1.74). It sits at the same lightness (LRV 15 vs 15) and carries a warm red-orange undertone, so it substitutes for Limestone Slate without repainting risk. See the full Wildwood swatch →
Kompozit Equivalent of Limestone Slate
Kompozit's nearest match is River God (0450), visually identical in normal room light (ΔE 1.63). It sits at the same lightness (LRV 15 vs 15) and carries a warm yellow undertone, so it substitutes for Limestone Slate without repainting risk. See the full River God swatch →