Mountain Moss vs Agreeable Gray
Mountain Moss is a Benjamin Moore color while Agreeable Gray comes from Sherwin-Williams. Mountain Moss reads as beige-greige, while Agreeable Gray reads as greige-grey — two distinct hue families, not close cousins. At LRV 60 vs 18, Agreeable Gray will read as the brighter of the two — a 43-point gap that matters most in north-facing or low-light rooms. The tonal difference — Mountain Moss's yellow character against Agreeable Gray's warm — becomes most visible against white trim or in morning light. At ΔE 36.4, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Mountain Moss vs Agreeable Gray in Real Spaces
4 real rooms side by side. Seeing Mountain Moss and Agreeable Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Mountain Moss would.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Mountain Moss would.
Front Door
Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Mountain Moss would.
Color Details
Mountain Moss vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Moss on one side and Agreeable Gray 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 Mountain Moss comparisons
See how Mountain Moss stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 18), opening up a space where Mountain Moss encloses it.
At LRV 69 vs 18, Ammonite is decisively the brighter choice.
Mountain Moss reflects far more light (LRV 18 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 18, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 18, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 18), opening up a space where Mountain Moss encloses it.
Accessible Beige reflects far more light (LRV 58 vs 18), opening up a space where Mountain Moss encloses it.
Denim Drift reads slightly lighter (LRV 27 vs 18), a gap that shows most in low-lit rooms.
At LRV 43 vs 18, French Gray is decisively the brighter choice.
At LRV 18 vs 4, Mountain Moss is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 18), opening up a space where Mountain Moss encloses it.
Mountain Moss reads slightly lighter (LRV 18 vs 13), a gap that shows most in low-lit rooms.
Hardwick White reflects far more light (LRV 44 vs 18), opening up a space where Mountain Moss encloses it.
At LRV 84 vs 18, Pure White is decisively the brighter choice.
A 4-point LRV gap (21 vs 18) makes Artichoke the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 18), opening up a space where Mountain Moss encloses it.
Shoji White reflects far more light (LRV 74 vs 18), opening up a space where Mountain Moss encloses it.
Snowbound reflects far more light (LRV 83 vs 18), opening up a space where Mountain Moss encloses it.
Mountain Moss reads slightly lighter (LRV 18 vs 12), a gap that shows most in low-lit rooms.
Skimming Stone reflects far more light (LRV 68 vs 18), opening up a space where Mountain Moss encloses it.
At LRV 41 vs 18, Dix Blue is decisively the brighter choice.
At LRV 68 vs 18, Calamine is decisively the brighter choice.
A 7-point LRV gap (25 vs 18) makes Treron the marginally brighter of the two.
Mountain Moss reads slightly lighter (LRV 18 vs 12), a gap that shows most in low-lit rooms.
Saybrook Sage reflects far more light (LRV 45 vs 18), opening up a space where Mountain Moss encloses it.
At LRV 31 vs 18, Pale Green is decisively the brighter choice.
A 11-point LRV gap (18 vs 7) makes Mountain Moss the marginally brighter of the two.
A 7-point LRV gap (24 vs 18) makes Cement grey the marginally brighter of the two.
At LRV 57 vs 18, Guilford Green is decisively the brighter choice.
At LRV 72 vs 18, Just Walnut is decisively the brighter choice.