Mosaic vs Just Walnut
Where Mosaic belongs to Benjamin Moore's range, Just Walnut is a Dulux color. Mosaic reads as blue, while Just Walnut reads as beige-greige — two distinct hue families, not close cousins. Just Walnut (LRV 72) reflects noticeably more light than Mosaic (LRV 15), a difference of 57 points that becomes especially apparent in rooms with limited natural light. Mosaic runs blue while Just Walnut is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 62.9, 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.
Mosaic vs Just Walnut in Real Spaces
1 real room side by side. Seeing Mosaic and Just Walnut 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 Mosaic.
Color Details
Mosaic vs Just Walnut Simulated Comparison
5 simulated room previews — drag the slider on each to see Mosaic 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 Mosaic comparisons
See how Mosaic stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 15, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 15), opening up a space where Mosaic encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 15), opening up a space where Mosaic encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 15), opening up a space where Mosaic encloses it.
At LRV 58 vs 15, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 15, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 15), opening up a space where Mosaic encloses it.
At LRV 55 vs 15, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 15, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 15), opening up a space where Mosaic encloses it.
At LRV 66 vs 15, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 15, Shoji White is decisively the brighter choice.
A 3-point LRV gap (15 vs 12) makes Mosaic the marginally brighter of the two.
At LRV 68 vs 15, Skimming Stone is decisively the brighter choice.
A 3-point LRV gap (15 vs 12) makes Mosaic the marginally brighter of the two.
At LRV 45 vs 15, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 15), opening up a space where Mosaic encloses it.
Mosaic reads slightly lighter (LRV 15 vs 7), a gap that shows most in low-lit rooms.
Cement grey reads slightly lighter (LRV 24 vs 15), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 15), opening up a space where Mosaic encloses it.