Just Walnut vs S 4010-Y50R
Just Walnut (Dulux) and S 4010-Y50R (NCS) come from different manufacturers. Both sit in the beige-greige family, which is useful context if you're narrowing within a single hue direction. The 42-point LRV gap — 72 for Just Walnut vs 30 for S 4010-Y50R — means Just Walnut will open up a space more effectively. Both share a warm character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 28.0 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.
Just Walnut vs S 4010-Y50R in Real Spaces
1 real room side by side. Seeing Just Walnut and S 4010-Y50R 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
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Just Walnut reflects noticeably more light off the walls, making the space read more open than S 4010-Y50R.
Color Details
Just Walnut vs S 4010-Y50R Simulated Comparison
5 simulated room previews — drag the slider on each to see Just Walnut on one side and S 4010-Y50R 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.









































