Iron Ore vs Umbra grey
Iron Ore (Sherwin-Williams) and Umbra grey (RAL Classic) come from different manufacturers. The 4-point LRV gap — 10 for Umbra grey vs 6 for Iron Ore — means Umbra grey will open up a space more effectively. ΔE 4.1 means they're clearly different, but not dramatically so — they'd pair well in the same room.
Iron Ore vs Umbra grey Color Comparison
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.
Color Details
Iron Ore vs Umbra grey in Real Spaces
Iron Ore and Umbra grey are close enough that the difference can be hard to judge from a chip alone. These real-room photos show how each reads at scale, across different spaces and lighting conditions. Showing 5 room types where both colors have photos.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Umbra grey reads slightly lighter here — a subtle but real difference in how open the space feels.
@mybudgetrecipes
@armoni.interior
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Umbra grey has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
@mybudgetrecipes
@wezu_art
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Umbra grey has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
@mybudgetrecipes
@auzeo_habitat
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Umbra grey reads slightly lighter here — a subtle but real difference in how open the space feels.
@mybudgetrecipes
@hetpoelhuys
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Umbra grey has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
@fieldandforestdesign
@cheshire.upvc.coatings
More Iron Ore comparisons
See how Iron Ore stacks up against other well-photographed colors across different brands and tones.

Light vs dark contrast
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Light vs dark contrast
Sherwin-Williams vs Farrow & Ball

Light vs dark contrast
Sherwin-Williams vs Farrow & Ball

Light vs dark contrast
Sherwin-Williams

Light vs dark contrast
Sherwin-Williams vs Farrow & Ball

Light vs dark contrast
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Light vs dark contrast
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Light vs dark contrast
Sherwin-Williams vs Dulux

Light vs dark contrast
Sherwin-Williams vs Dulux

Light vs dark contrast
Sherwin-Williams vs Benjamin Moore

Sherwin-Williams vs Benjamin Moore
Sherwin-Williams vs Benjamin Moore

Light vs dark contrast
Sherwin-Williams vs RAL Classic

Sherwin-Williams vs Dulux
Sherwin-Williams vs Dulux

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Sherwin-Williams vs RAL Classic

Sherwin-Williams vs RAL Classic
Sherwin-Williams vs RAL Classic

Light vs dark contrast
Sherwin-Williams vs Jotun

Light vs dark contrast
Sherwin-Williams vs Little Greene

Light vs dark contrast
Sherwin-Williams vs Jotun

Sherwin-Williams vs Little Greene
Sherwin-Williams vs Little Greene

Light vs dark contrast
Sherwin-Williams vs Jotun

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Sherwin-Williams vs Little Greene

Sherwin-Williams vs Behr
Sherwin-Williams vs Behr

Light vs dark contrast
Sherwin-Williams vs Behr

Light vs dark contrast
Sherwin-Williams vs Behr

Light vs dark contrast
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Light vs dark contrast
Sherwin-Williams vs RAL Effect

Light vs dark contrast
Sherwin-Williams vs RAL Effect

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Sherwin-Williams vs NCS

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Sherwin-Williams vs NCS

Light vs dark contrast
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