Color spec
| Brand | Glidden |
| Name | Old Mill Blue |
| SKU | PPG1171-6 |
| Hex | #6E6F82 |
| RGB | 110, 111, 130 |
| HSL | 237°, 8%, 47% |
| LRV | 16 |
| Undertone | cool blue tone |
| Family | Gray |
About Glidden Old Mill Blue
With an LRV of 16, Old Mill Blue is a deep, dramatic shade. It soaks up light in north-facing rooms and looks richest where strong daylight hits it. Its blue 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. Warm artificial light softens it; cool LED can make it look flat, so match your bulbs to the mood you want.
Old Mill Blue 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
12 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
Dutch Boy
HGTV Home by Sherwin-Williams
Diamond Vogel
Hirshfield's
Rodda
C2 Paint
Kompozit
Similar Glidden colors
closest in the Glidden deckThe nearest shades to Old Mill Blue within 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 #6E6F82 in HSL space. Pair Old Mill Blue 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.
Glidden Old Mill Blue Equivalents at Other Brands
Matching Old Mill Blue 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 Glidden PPG1171-6 directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Sherwin-Williams Equivalent of Old Mill Blue
Sherwin-Williams has no exact twin of Old Mill Blue. The nearest is Exclusive Plum (SW 6263) at ΔE 4.75 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 16 vs 16). Compare large swatches before substituting. See the full Exclusive Plum swatch →
Behr Equivalent of Old Mill Blue
Behr's nearest match is Enigmatic (BNC-30), visually identical in normal room light (ΔE 1.95). It sits at the same lightness (LRV 16 vs 16) and carries a cool blue undertone, so it substitutes for Old Mill Blue without repainting risk. See the full Enigmatic swatch →
Benjamin Moore Equivalent of Old Mill Blue
Benjamin Moore's nearest match is Amethyst Shadow (1441), visually identical in normal room light (ΔE 1.61). It runs slightly lighter (LRV 18 vs 16) and carries a cool blue undertone, so it substitutes for Old Mill Blue without repainting risk. See the full Amethyst Shadow swatch →
Valspar Equivalent of Old Mill Blue
Valspar has no exact twin of Old Mill Blue. The nearest is Purple Funk (8004-47E) at ΔE 3.83 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 16 vs 16). Compare large swatches before substituting. See the full Purple Funk swatch →
PPG / Glidden Equivalent of Old Mill Blue
The closest PPG / Glidden equivalent of Old Mill Blue is Old Mill Blue (PPG1171-6). At ΔE 0.59 the two are indistinguishable on a wall — it carries the same cool blue undertone and sits at the same lightness (LRV 17 vs 16). If PPG / Glidden is your counter, order Old Mill Blue and you'll get the same color. See the full Old Mill Blue swatch →
Dutch Boy Equivalent of Old Mill Blue
Dutch Boy has no exact twin of Old Mill Blue. The nearest is Violaceous (344-5DB) at ΔE 3.61 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 16 vs 16). Compare large swatches before substituting. See the full Violaceous swatch →
HGTV Home by Sherwin-Williams Equivalent of Old Mill Blue
HGTV Home by Sherwin-Williams has no exact twin of Old Mill Blue. The nearest is Smoky Purple (HGSW 3393) at ΔE 4.75 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 16 vs 16). Compare large swatches before substituting. See the full Smoky Purple swatch →
Diamond Vogel Equivalent of Old Mill Blue
Diamond Vogel has no exact twin of Old Mill Blue. The nearest is Grapes of Wrath (1284) at ΔE 3.7 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 16 vs 16). Compare large swatches before substituting. See the full Grapes of Wrath swatch →
Hirshfield's Equivalent of Old Mill Blue
At Hirshfield's, the closest color to Old Mill Blue is Overlook (1319) — very close at ΔE 3.31, though not an exact twin. It sits at the same lightness (LRV 17 vs 16) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Overlook swatch →
C2 Paint Equivalent of Old Mill Blue
C2 Paint has no exact twin of Old Mill Blue. The nearest is Mistral (C2-791) at ΔE 4 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 17 vs 16). Compare large swatches before substituting. See the full Mistral swatch →
Kompozit Equivalent of Old Mill Blue
At Kompozit, the closest color to Old Mill Blue is Overlook (1319) — very close at ΔE 3.31, though not an exact twin. It sits at the same lightness (LRV 15 vs 16) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Overlook swatch →