Thermal vs Iron Ore
Where Thermal belongs to Behr's range, Iron Ore is a Sherwin-Williams color. Hue-wise, Thermal belongs to the blue-grey family and Iron Ore to the grey family. They have nearly identical light reflectance values (7 vs 6), so they'll read as similarly Dark in most lighting conditions. Thermal runs blue while Iron Ore is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 8.5 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Thermal vs Iron Ore in Real Spaces
2 real rooms side by side. Thermal and Iron Ore are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The temperature contrast between Iron Ore and Thermal is what sets these apart most in this context.
Color Details
Thermal vs Iron Ore Simulated Comparison
5 simulated room previews — drag the slider on each to see Thermal 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 Thermal comparisons
See how Thermal stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 7, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 7), opening up a space where Thermal encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 7), opening up a space where Thermal encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 7), opening up a space where Thermal encloses it.
At LRV 58 vs 7, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 7, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 7), opening up a space where Thermal encloses it.
At LRV 55 vs 7, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 7, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 7), opening up a space where Thermal encloses it.
At LRV 66 vs 7, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 7, Shoji White is decisively the brighter choice.
A 4-point LRV gap (12 vs 7) makes Pewter Green the marginally brighter of the two.
At LRV 68 vs 7, Skimming Stone is decisively the brighter choice.
A 4-point LRV gap (12 vs 7) makes Vintage Vogue the marginally brighter of the two.
At LRV 45 vs 7, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 7), opening up a space where Thermal encloses it.
With LRVs of 7 and 7, the two reflect almost the same amount of light.
Cement grey reflects far more light (LRV 24 vs 7), opening up a space where Thermal encloses it.
Guilford Green reflects far more light (LRV 57 vs 7), opening up a space where Thermal encloses it.
Just Walnut reflects far more light (LRV 72 vs 7), opening up a space where Thermal encloses it.