Mountain Moss vs Iron Ore
Where Mountain Moss belongs to Benjamin Moore's range, Iron Ore is a Sherwin-Williams color. Mountain Moss reads as beige-greige, while Iron Ore reads as grey — two distinct hue families, not close cousins. Mountain Moss (LRV 18) reflects noticeably more light than Iron Ore (LRV 6), a difference of 12 points that becomes especially apparent in rooms with limited natural light. Mountain Moss runs yellow while Iron Ore is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 23.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Mountain Moss vs Iron Ore in Real Spaces
4 real rooms side by side. Seeing Mountain Moss and Iron Ore 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 are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Mountain Moss reflects noticeably more light off the walls, making the space read more open than Iron Ore.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Mountain Moss reflects noticeably more light off the walls, making the space read more open than Iron Ore.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Mountain Moss will make the room feel meaningfully brighter than Iron Ore would.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Mountain Moss reflects noticeably more light off the walls, making the space read more open than Iron Ore.
Color Details
Mountain Moss vs Iron Ore Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Moss on one side and Iron Ore 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.
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.
At LRV 60 vs 18, Agreeable Gray is decisively the brighter choice.
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.