Atomic Red vs Iron Ore
Where Atomic Red belongs to Little Greene's range, Iron Ore is a Sherwin-Williams color. Atomic Red reads as pink-red, while Iron Ore reads as grey — two distinct hue families, not close cousins. Atomic Red (LRV 12) reflects noticeably more light than Iron Ore (LRV 6), a difference of 7 points that becomes especially apparent in rooms with limited natural light. Atomic Red runs red while Iron Ore is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 72.6, 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 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Atomic Red vs Iron Ore in Real Spaces
2 real rooms side by side. Seeing Atomic Red 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. Atomic Red reads slightly lighter here — a subtle but real difference in how open the space feels.
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. Atomic Red reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Atomic Red vs Iron Ore Simulated Comparison
5 simulated room previews — drag the slider on each to see Atomic Red 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 Atomic Red comparisons
See how Atomic Red stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 12, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 12), opening up a space where Atomic Red encloses it.
Purbeck Stone reflects far more light (LRV 52 vs 12), opening up a space where Atomic Red encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 12), opening up a space where Atomic Red encloses it.
At LRV 52 vs 12, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 12), opening up a space where Atomic Red encloses it.
At LRV 58 vs 12, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 12, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 12), opening up a space where Atomic Red encloses it.
Atomic Red reads slightly lighter (LRV 12 vs 4), a gap that shows most in low-lit rooms.
At LRV 55 vs 12, Tranquil Dawn is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 13 vs 12), so neither reads brighter in a room.
At LRV 44 vs 12, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 12), opening up a space where Atomic Red encloses it.
Artichoke reads slightly lighter (LRV 21 vs 12), a gap that shows most in low-lit rooms.
At LRV 66 vs 12, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 12, Shoji White is decisively the brighter choice.
At LRV 83 vs 12, Snowbound is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 12 vs 12), so neither reads brighter in a room.
At LRV 68 vs 12, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 12), opening up a space where Atomic Red encloses it.
Calamine reflects far more light (LRV 68 vs 12), opening up a space where Atomic Red encloses it.
Treron reflects far more light (LRV 25 vs 12), opening up a space where Atomic Red encloses it.
Their light reflectance is nearly identical (LRV 12 vs 12), so neither reads brighter in a room.
At LRV 45 vs 12, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 12), opening up a space where Atomic Red encloses it.
Atomic Red reads slightly lighter (LRV 12 vs 7), a gap that shows most in low-lit rooms.
Cement grey reads slightly lighter (LRV 24 vs 12), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 12), opening up a space where Atomic Red encloses it.
Just Walnut reflects far more light (LRV 72 vs 12), opening up a space where Atomic Red encloses it.