Rock Gray vs Iron Ore
Rock Gray is a Benjamin Moore color while Iron Ore comes from Sherwin-Williams. These are both greys, so the question isn't which hue to choose — it's where within grey to land. At LRV 24 vs 6, Rock Gray will read as the brighter of the two — a 18-point gap that matters most in north-facing or low-light rooms. The tonal difference — Rock Gray's blue character against Iron Ore's neutral — becomes most visible against white trim or in morning light. At ΔE 26.4, 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.
Rock Gray vs Iron Ore in Real Spaces
4 real rooms side by side. Seeing Rock Gray 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.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Rock Gray will make the room feel meaningfully brighter than Iron Ore would.
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 Rock Gray will make the room feel meaningfully brighter than Iron Ore 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 Rock Gray will make the room feel meaningfully brighter than Iron Ore would.
Color Details
Rock Gray vs Iron Ore Simulated Comparison
5 simulated room previews — drag the slider on each to see Rock Gray 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 Rock Gray comparisons
See how Rock Gray stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 24, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 24), opening up a space where Rock Gray encloses it.
Evergreen Fog reads slightly lighter (LRV 30 vs 24), a gap that shows most in low-lit rooms.
Agreeable Gray reflects far more light (LRV 60 vs 24), opening up a space where Rock Gray encloses it.
At LRV 58 vs 24, Accessible Beige is decisively the brighter choice.
A 3-point LRV gap (27 vs 24) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 24), opening up a space where Rock Gray encloses it.
At LRV 55 vs 24, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 24, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 24), opening up a space where Rock Gray encloses it.
At LRV 66 vs 24, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 24, Shoji White is decisively the brighter choice.
A 12-point LRV gap (24 vs 12) makes Rock Gray the marginally brighter of the two.
At LRV 68 vs 24, Skimming Stone is decisively the brighter choice.
A 12-point LRV gap (24 vs 12) makes Rock Gray the marginally brighter of the two.
At LRV 45 vs 24, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 24), a gap that shows most in low-lit rooms.
Rock Gray reflects far more light (LRV 24 vs 7), opening up a space where Pine Needle encloses it.
With LRVs of 24 and 24, the two reflect almost the same amount of light.
Guilford Green reflects far more light (LRV 57 vs 24), opening up a space where Rock Gray encloses it.
Just Walnut reflects far more light (LRV 72 vs 24), opening up a space where Rock Gray encloses it.