Just Walnut vs Ultramarine blue
Just Walnut (Dulux) and Ultramarine blue (RAL Classic) come from different manufacturers. Just Walnut reads as beige-greige, while Ultramarine blue reads as blue — two distinct hue families, not close cousins. The 65-point LRV gap — 72 for Just Walnut vs 7 for Ultramarine blue — means Just Walnut will open up a space more effectively. A ΔE of 78.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Just Walnut vs Ultramarine blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Just Walnut on one side and Ultramarine blue 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 Just Walnut comparisons
See how Just Walnut stacks up against other well-photographed colors across different brands and tones.
