Slate Blue vs Just Walnut
Slate Blue (Benjamin Moore) and Just Walnut (Dulux) come from different manufacturers. Hue-wise, Slate Blue belongs to the blue family and Just Walnut to the beige-greige family. The 29-point LRV gap — 72 for Just Walnut vs 43 for Slate Blue — means Just Walnut will open up a space more effectively. Where Slate Blue leans blue, Just Walnut reads warm — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 20.8 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.
Slate Blue vs Just Walnut in Real Spaces
1 real room side by side. Seeing Slate Blue 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.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Just Walnut returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Slate Blue vs Just Walnut Simulated Comparison
5 simulated room previews — drag the slider on each to see Slate Blue 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 Slate Blue comparisons
See how Slate Blue stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 43), opening up a space where Slate Blue encloses it.
At LRV 69 vs 43, Ammonite is decisively the brighter choice.
Slate Blue reflects far more light (LRV 43 vs 6), opening up a space where Iron Ore encloses it.
A 9-point LRV gap (52 vs 43) makes Purbeck Stone the marginally brighter of the two.
At LRV 43 vs 30, Slate Blue is decisively the brighter choice.
Mizzle reads slightly lighter (LRV 52 vs 43), a gap that shows most in low-lit rooms.
At LRV 60 vs 43, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 43), opening up a space where Slate Blue encloses it.
Slate Blue reflects far more light (LRV 43 vs 27), opening up a space where Denim Drift encloses it.
Their light reflectance is nearly identical (LRV 43 vs 43), so neither reads brighter in a room.
At LRV 43 vs 4, Slate Blue is decisively the brighter choice.
Tranquil Dawn reads slightly lighter (LRV 55 vs 43), a gap that shows most in low-lit rooms.
Slate Blue reflects far more light (LRV 43 vs 13), opening up a space where Bancha encloses it.
With LRVs of 44 and 43, the two reflect almost the same amount of light.
At LRV 84 vs 43, Pure White is decisively the brighter choice.
At LRV 43 vs 21, Slate Blue is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 43), opening up a space where Slate Blue encloses it.
Shoji White reflects far more light (LRV 74 vs 43), opening up a space where Slate Blue encloses it.
Snowbound reflects far more light (LRV 83 vs 43), opening up a space where Slate Blue encloses it.
Slate Blue reflects far more light (LRV 43 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 43), opening up a space where Slate Blue encloses it.
Their light reflectance is nearly identical (LRV 43 vs 41), so neither reads brighter in a room.
At LRV 68 vs 43, Calamine is decisively the brighter choice.
At LRV 43 vs 25, Slate Blue is decisively the brighter choice.
Slate Blue reflects far more light (LRV 43 vs 12), opening up a space where Vintage Vogue encloses it.
With LRVs of 45 and 43, the two reflect almost the same amount of light.
A 12-point LRV gap (43 vs 31) makes Slate Blue the marginally brighter of the two.
At LRV 43 vs 7, Slate Blue is decisively the brighter choice.
At LRV 43 vs 24, Slate Blue is decisively the brighter choice.
At LRV 57 vs 43, Guilford Green is decisively the brighter choice.