Thundercloud vs Guilford Green
Where Thundercloud belongs to Behr's range, Guilford Green is a Benjamin Moore color. Hue-wise, Thundercloud belongs to the blue family and Guilford Green to the beige-green family. Guilford Green (LRV 57) reflects noticeably more light than Thundercloud (LRV 23), a difference of 35 points that becomes especially apparent in rooms with limited natural light. Thundercloud runs blue while Guilford Green is decidedly yellow, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 40.3, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Thundercloud vs Guilford Green in Real Spaces
1 real room side by side. Seeing Thundercloud and Guilford Green 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. Guilford Green reflects noticeably more light off the walls, making the space read more open than Thundercloud.
Color Details
Thundercloud vs Guilford Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Thundercloud on one side and Guilford Green 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 Thundercloud comparisons
See how Thundercloud stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 23, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 23), opening up a space where Thundercloud encloses it.
At LRV 23 vs 6, Thundercloud is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 23), opening up a space where Thundercloud encloses it.
Evergreen Fog reads slightly lighter (LRV 30 vs 23), a gap that shows most in low-lit rooms.
At LRV 52 vs 23, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 23), opening up a space where Thundercloud encloses it.
At LRV 58 vs 23, Accessible Beige is decisively the brighter choice.
A 4-point LRV gap (27 vs 23) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 23), opening up a space where Thundercloud encloses it.
Thundercloud reflects far more light (LRV 23 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 23, Tranquil Dawn is decisively the brighter choice.
A 9-point LRV gap (23 vs 13) makes Thundercloud the marginally brighter of the two.
At LRV 44 vs 23, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 23), opening up a space where Thundercloud encloses it.
With LRVs of 23 and 21, the two reflect almost the same amount of light.
At LRV 66 vs 23, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 23, Shoji White is decisively the brighter choice.
At LRV 83 vs 23, Snowbound is decisively the brighter choice.
A 11-point LRV gap (23 vs 12) makes Thundercloud the marginally brighter of the two.
At LRV 68 vs 23, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 23), opening up a space where Thundercloud encloses it.
Calamine reflects far more light (LRV 68 vs 23), opening up a space where Thundercloud encloses it.
With LRVs of 25 and 23, the two reflect almost the same amount of light.
A 11-point LRV gap (23 vs 12) makes Thundercloud the marginally brighter of the two.
At LRV 45 vs 23, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 23), a gap that shows most in low-lit rooms.
Thundercloud reflects far more light (LRV 23 vs 7), opening up a space where Pine Needle encloses it.
With LRVs of 24 and 23, the two reflect almost the same amount of light.
Just Walnut reflects far more light (LRV 72 vs 23), opening up a space where Thundercloud encloses it.