Nightfall Sky vs Iron Ore
Where Nightfall Sky belongs to Benjamin Moore's range, Iron Ore is a Sherwin-Williams color. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. Nightfall Sky (LRV 15) reflects noticeably more light than Iron Ore (LRV 6), a difference of 10 points that becomes especially apparent in rooms with limited natural light. Nightfall Sky runs purple while Iron Ore is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 20.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Nightfall Sky vs Iron Ore Simulated Comparison
5 simulated room previews — drag the slider on each to see Nightfall Sky 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 Nightfall Sky comparisons
See how Nightfall Sky stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 15, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 15), opening up a space where Nightfall Sky encloses it.
At LRV 52 vs 15, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 15, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 15), opening up a space where Nightfall Sky encloses it.
At LRV 60 vs 15, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 15), opening up a space where Nightfall Sky encloses it.
Denim Drift reads slightly lighter (LRV 27 vs 15), a gap that shows most in low-lit rooms.
At LRV 43 vs 15, French Gray is decisively the brighter choice.
A 11-point LRV gap (15 vs 4) makes Nightfall Sky the marginally brighter of the two.
Tranquil Dawn reflects far more light (LRV 55 vs 15), opening up a space where Nightfall Sky encloses it.
With LRVs of 15 and 13, the two reflect almost the same amount of light.
Hardwick White reflects far more light (LRV 44 vs 15), opening up a space where Nightfall Sky encloses it.
At LRV 84 vs 15, Pure White is decisively the brighter choice.
A 6-point LRV gap (21 vs 15) makes Artichoke the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 15), opening up a space where Nightfall Sky encloses it.
Shoji White reflects far more light (LRV 74 vs 15), opening up a space where Nightfall Sky encloses it.
Snowbound reflects far more light (LRV 83 vs 15), opening up a space where Nightfall Sky encloses it.
At LRV 51 vs 15, Pigeon is decisively the brighter choice.
Nightfall Sky reads slightly lighter (LRV 15 vs 12), a gap that shows most in low-lit rooms.
Nightfall Sky reads slightly lighter (LRV 15 vs 8), a gap that shows most in low-lit rooms.
Skimming Stone reflects far more light (LRV 68 vs 15), opening up a space where Nightfall Sky encloses it.
At LRV 41 vs 15, Dix Blue is decisively the brighter choice.
Nightfall Sky reads slightly lighter (LRV 15 vs 12), a gap that shows most in low-lit rooms.
Saybrook Sage reflects far more light (LRV 45 vs 15), opening up a space where Nightfall Sky encloses it.
At LRV 31 vs 15, Pale Green is decisively the brighter choice.
A 8-point LRV gap (15 vs 7) makes Nightfall Sky the marginally brighter of the two.