Just Walnut vs S 2005-Y40R
Where Just Walnut belongs to Dulux's range, S 2005-Y40R is a NCS color. Both sit in the beige-greige family, which is useful context if you're narrowing within a single hue direction. Just Walnut (LRV 72) reflects noticeably more light than S 2005-Y40R (LRV 53), a difference of 19 points that becomes especially apparent in rooms with limited natural light. Both lean warm, so they'll behave similarly in mixed or changing light conditions. With a ΔE of 11.9, 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.
Just Walnut vs S 2005-Y40R in Real Spaces
1 real room side by side. Seeing Just Walnut and S 2005-Y40R in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Just Walnut reflects noticeably more light off the walls, making the space read more open than S 2005-Y40R.
Color Details
Just Walnut vs S 2005-Y40R Simulated Comparison
5 simulated room previews — drag the slider on each to see Just Walnut on one side and S 2005-Y40R 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.
