Thundercloud vs Just Walnut
Where Thundercloud belongs to Behr's range, Just Walnut is a Dulux color. Thundercloud reads as blue, while Just Walnut reads as beige-greige — two distinct hue families, not close cousins. Just Walnut (LRV 72) reflects noticeably more light than Thundercloud (LRV 23), a difference of 49 points that becomes especially apparent in rooms with limited natural light. Thundercloud runs blue while Just Walnut is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 37.2, 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 Just Walnut in Real Spaces
1 real room side by side. Seeing Thundercloud and Just Walnut 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. Just Walnut reflects noticeably more light off the walls, making the space read more open than Thundercloud.
Color Details
Thundercloud vs Just Walnut Simulated Comparison
5 simulated room previews — drag the slider on each to see Thundercloud on one side and Just Walnut 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.
