Spectra Blue vs Just Walnut
Spectra Blue (Benjamin Moore) and Just Walnut (Dulux) come from different manufacturers. Hue-wise, Spectra Blue belongs to the blue family and Just Walnut to the beige-greige family. The 16-point LRV gap — 72 for Just Walnut vs 56 for Spectra Blue — means Just Walnut will open up a space more effectively. Where Spectra Blue leans blue, Just Walnut reads warm — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 22.1 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Spectra Blue vs Just Walnut in Real Spaces
1 real room side by side. Seeing Spectra Blue 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.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Just Walnut returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Spectra Blue vs Just Walnut Simulated Comparison
5 simulated room previews — drag the slider on each to see Spectra Blue 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 Spectra Blue comparisons
See how Spectra Blue stacks up against other well-photographed colors across different brands and tones.
