Color spec
| Brand | Valspar |
| Name | Shadow Mountain |
| SKU | 8003-48E |
| Hex | #666B89 |
| RGB | 102, 107, 137 |
| HSL | 231°, 15%, 47% |
| LRV | 15 |
| Undertone | cool blue tone |
| Family | Gray |
About Valspar Shadow Mountain
With an LRV of 15, Shadow Mountain 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.
Shadow Mountain 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
14 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
PPG / Glidden
Glidden
Dutch Boy
HGTV Home by Sherwin-Williams
Dunn-Edwards
Farrow & Ball
Diamond Vogel
Hirshfield's
C2 Paint
Clare
Kompozit
Similar Valspar colors
closest in the Valspar deckThe nearest shades to Shadow Mountain within Valspar'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 #666B89 in HSL space. Pair Shadow Mountain 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.
Valspar Shadow Mountain Equivalents at Other Brands
Matching Shadow Mountain 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 Valspar 8003-48E directly — these equivalents are for when you'd rather stay inside one brand's own deck.
Behr Equivalent of Shadow Mountain
Behr has no exact twin of Shadow Mountain. The nearest is Hyacinth Arbor (PPU16-18) at ΔE 4.19 — 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 Hyacinth Arbor swatch →
Benjamin Moore Equivalent of Shadow Mountain
Benjamin Moore's nearest match is French Violet (1427), visually identical in normal room light (ΔE 1.9). It runs slightly lighter (LRV 18 vs 15) and carries a cool blue undertone, so it substitutes for Shadow Mountain without repainting risk. See the full French Violet swatch →
PPG / Glidden Equivalent of Shadow Mountain
At PPG / Glidden, the closest color to Shadow Mountain is Grape Haze (PPG1168-6) — very close at ΔE 2.1, though not an exact twin. It sits at the same lightness (LRV 15 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Grape Haze swatch →
Glidden Equivalent of Shadow Mountain
At Glidden, the closest color to Shadow Mountain is Grape Haze (PPG1168-6) — very close at ΔE 2.19, though not an exact twin. It sits at the same lightness (LRV 15 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Grape Haze swatch →
Dutch Boy Equivalent of Shadow Mountain
Dutch Boy has no exact twin of Shadow Mountain. The nearest is Indigo Dreams (240-6DB) at ΔE 4.19 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 16 vs 15). Compare large swatches before substituting. See the full Indigo Dreams swatch →
Dunn-Edwards Equivalent of Shadow Mountain
Dunn-Edwards's nearest match is Champion Blue (DE5915), visually identical in normal room light (ΔE 1.97). It runs slightly darker (LRV 13 vs 15) and carries a cool blue undertone, so it substitutes for Shadow Mountain without repainting risk. See the full Champion Blue swatch →
Farrow & Ball Equivalent of Shadow Mountain
At Farrow & Ball, the closest color to Shadow Mountain is Pitch Blue (NO. 220) — very close at ΔE 3.14, though not an exact twin. It sits at the same lightness (LRV 15 vs 15) and carries a cool blue undertone; sample both side by side if the room gets strong natural light. See the full Pitch Blue swatch →
Diamond Vogel Equivalent of Shadow Mountain
Diamond Vogel has no exact twin of Shadow Mountain. The nearest is Grapes of Wrath (1284) at ΔE 4.05 — close, but the difference shows next to trim and in side light. It sits at the same lightness (LRV 16 vs 15). Compare large swatches before substituting. See the full Grapes of Wrath swatch →
C2 Paint Equivalent of Shadow Mountain
C2 Paint's nearest match is Mystery (C2-776), visually identical in normal room light (ΔE 1.29). It sits at the same lightness (LRV 15 vs 15) and carries a cool blue undertone, so it substitutes for Shadow Mountain without repainting risk. See the full Mystery swatch →
Clare Equivalent of Shadow Mountain
Clare has no exact twin of Shadow Mountain. The nearest is Blue'd Up (PNT100-MD-57) at ΔE 3.64 — close, but the difference shows next to trim and in side light. It runs slightly darker (LRV 13 vs 15). Compare large swatches before substituting. See the full Blue'd Up swatch →