Just Walnut vs Sea Urchin 3
Both are Dulux colors. Hue-wise, Just Walnut belongs to the beige-greige family and Sea Urchin 3 to the blue family. At LRV 72 vs 40, Just Walnut will read as the brighter of the two — a 32-point gap that matters most in north-facing or low-light rooms. The tonal difference — Just Walnut's warm character against Sea Urchin 3's cool — becomes most visible against white trim or in morning light. At ΔE 23.7, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Just Walnut vs Sea Urchin 3 in Real Spaces
3 real rooms side by side. Seeing Just Walnut and Sea Urchin 3 in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Just Walnut returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Just Walnut will make the room feel meaningfully brighter than Sea Urchin 3 would.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The LRV gap is large enough that Just Walnut will make the room feel meaningfully brighter than Sea Urchin 3 would.
Color Details
Just Walnut vs Sea Urchin 3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Just Walnut on one side and Sea Urchin 3 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.
