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Millstone Gray 1581
On-screen approximation from the published RGB value. Order a physical sample before you decide.
Undertone: Subtle green undertone
In CIELAB, Millstone Gray sits at L* 46.9, a* -4.1, b* 3.0. Its hue angle is 144° and its chroma is 5.1, so it leans green only slightly — the undertone mostly shows next to whiter or grayer colors. It classifies as neutral-warm. Among Benjamin Moore colors with a similar LRV (±5), it is warmer (more yellow) than 30%.
LRV 17.0: dark
Light Reflectance Value runs from 0 (absolute black) to 100 (perfect white). At 17.0, Millstone Gray is lighter than 17% of Benjamin Moore colors. Absorbs most light. Good for accent walls, cabinets, doors and exteriors; needs good lighting indoors.
Closest Sherwin-Williams match to Millstone Gray
Ranked by CIEDE2000 color difference (ΔE) computed from published RGB values. Below 2 is hard to tell apart on the wall; above 4 is a different color.
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Homburg Gray | SW 7622 | 2.15 | Close — difference visible side by side | |
| Succulent | SW 9650 | 3.02 | Close — difference visible side by side | |
| Rosemary | SW 6187 | 4.27 | Similar, clearly different |
Closest Behr match to Millstone Gray
Ranked by CIEDE2000 color difference (ΔE) computed from published RGB values. Below 2 is hard to tell apart on the wall; above 4 is a different color. Behr does not publish LRV, so Behr values here are estimates.
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Laurel Oak | ECC-41-3 | 2.10 | Close — difference visible side by side | |
| Dense Shrub | 700F-6 | 2.39 | Close — difference visible side by side | |
| Heritage Park | PPU12-18 | 2.76 | Close — difference visible side by side |
Similar Benjamin Moore colors
| Color | Code | ΔE2000 | How close | |
|---|---|---|---|---|
| Rainy Afternoon | 1575 | 2.84 | Close — difference visible side by side | |
| Gray Gardens | CSP-55 | 3.05 | Close — difference visible side by side | |
| Kitty Gray | 1589 | 3.07 | Close — difference visible side by side | |
| Quarry Rock | 1568 | 3.28 | Close — difference visible side by side | |
| Caldwell Green | HC-124 | 3.49 | Close — difference visible side by side | |
| Amherst Gray | HC-167 | 4.07 | Similar, clearly different |
Lighter and darker versions
Colors from Benjamin Moore with nearly the same hue and saturation, one step lighter or darker.
- Amherst Gray HC-167 · lighter, LRV 18.8
- Rooftop Garden CSP-765 · lighter, LRV 19.0
- Steep Cliff Gray 2122-20 · lighter, LRV 20.5
- Kitty Gray 1589 · darker, LRV 15.5
- Knoxville Gray HC-160 · darker, LRV 15.7
- Burnt Ember CSP-120 · darker, LRV 15.5
Colors that go with Millstone Gray
Color-theory pairings — the nearest Benjamin Moore color to each rotated hue, keeping the same lightness and saturation:
- Vintage Charm 1455 · complementary (180°)
- Amherst Gray HC-167 · analogous (−30°)
- Kitty Gray 1589 · analogous (+30°)
- Ashland Slate 1608 · triadic (120°)
- Kasbah AF-640 · triadic (240°)
Millstone Gray vs popular colors
- Amherst Gray (Benjamin Moore HC-167, ΔE 4.1) is lighter (LRV 18.8 vs 17.0), more red/pink.
- Gauntlet Gray (Sherwin-Williams SW 7019, ΔE 7.2) is about as light, more red/pink.
- Peppercorn (Sherwin-Williams SW 7674, ΔE 10.4) is darker (LRV 9.7 vs 17.0), more blue/cool, more red/pink, more muted.