Celtic Blue vs Just Walnut
Where Celtic Blue belongs to Benjamin Moore's range, Just Walnut is a Dulux color. Hue-wise, Celtic Blue belongs to the blue-grey family and Just Walnut to the beige-greige family. Just Walnut (LRV 72) reflects noticeably more light than Celtic Blue (LRV 0), a difference of 72 points that becomes especially apparent in rooms with limited natural light. Celtic Blue runs cool while Just Walnut is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 17.0, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Celtic Blue vs Just Walnut Simulated Comparison
5 simulated room previews — drag the slider on each to see Celtic 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 Celtic Blue comparisons
See how Celtic Blue stacks up against other well-photographed colors across different brands and tones.
