Shadow Mountain vs Peppercorn
Shadow Mountain is a Behr color while Peppercorn comes from Sherwin-Williams. These are both greys, so the question isn't which hue to choose — it's where within grey to land. With LRVs of 10 and 10, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Shadow Mountain's red character against Peppercorn's neutral — becomes most visible against white trim or in morning light. At ΔE NaN, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Shadow Mountain vs Peppercorn in Real Spaces
2 real rooms side by side. Seeing Shadow Mountain and Peppercorn in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Dining Room
Dining room light is typically the warmest in the house, which shifts both colors toward the red end of the spectrum compared to daylight. The distinction reads clearly at room scale, making the choice between them concrete.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
Shadow Mountain vs Peppercorn Simulated Comparison
5 simulated room previews — drag the slider on each to see Shadow Mountain on one side and Peppercorn on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Shadow Mountain comparisons
See how Shadow Mountain stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 10), opening up a space where Shadow Mountain encloses it.
At LRV 69 vs 10, Ammonite is decisively the brighter choice.
Shadow Mountain reads slightly lighter (LRV 10 vs 6), a gap that shows most in low-lit rooms.
At LRV 52 vs 10, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 10, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 10), opening up a space where Shadow Mountain encloses it.
At LRV 60 vs 10, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 10), opening up a space where Shadow Mountain encloses it.
Denim Drift reflects far more light (LRV 27 vs 10), opening up a space where Shadow Mountain encloses it.
At LRV 43 vs 10, French Gray is decisively the brighter choice.
A 6-point LRV gap (10 vs 4) makes Shadow Mountain the marginally brighter of the two.
Tranquil Dawn reflects far more light (LRV 55 vs 10), opening up a space where Shadow Mountain encloses it.
Bancha reads slightly lighter (LRV 13 vs 10), a gap that shows most in low-lit rooms.
Hardwick White reflects far more light (LRV 44 vs 10), opening up a space where Shadow Mountain encloses it.
At LRV 84 vs 10, Pure White is decisively the brighter choice.
A 11-point LRV gap (21 vs 10) makes Artichoke the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 10), opening up a space where Shadow Mountain encloses it.
Shoji White reflects far more light (LRV 74 vs 10), opening up a space where Shadow Mountain encloses it.
Snowbound reflects far more light (LRV 83 vs 10), opening up a space where Shadow Mountain encloses it.
With LRVs of 12 and 10, the two reflect almost the same amount of light.
Skimming Stone reflects far more light (LRV 68 vs 10), opening up a space where Shadow Mountain encloses it.
At LRV 41 vs 10, Dix Blue is decisively the brighter choice.
At LRV 68 vs 10, Calamine is decisively the brighter choice.
At LRV 25 vs 10, Treron is decisively the brighter choice.
With LRVs of 12 and 10, the two reflect almost the same amount of light.
Saybrook Sage reflects far more light (LRV 45 vs 10), opening up a space where Shadow Mountain encloses it.
At LRV 31 vs 10, Pale Green is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 10 vs 7), so neither reads brighter in a room.
At LRV 24 vs 10, Cement grey is decisively the brighter choice.
At LRV 57 vs 10, Guilford Green is decisively the brighter choice.