Cystern vs Just Walnut
Cystern (Cloverdale Paint) and Just Walnut (Dulux) come from different manufacturers. Cystern reads as blue-grey, while Just Walnut reads as beige-greige — two distinct hue families, not close cousins. The 27-point LRV gap — 72 for Just Walnut vs 45 for Cystern — means Just Walnut will open up a space more effectively. A ΔE of 16.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cystern vs Just Walnut in Real Spaces
5 real rooms side by side. Seeing Cystern 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.
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 Cystern.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Just Walnut returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Just Walnut returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The LRV gap is large enough that Just Walnut will make the room feel meaningfully brighter than Cystern would.
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
Cystern vs Just Walnut Simulated Comparison
5 simulated room previews — drag the slider on each to see Cystern 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 Cystern comparisons
See how Cystern stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 45), opening up a space where Cystern encloses it.
A 7-point LRV gap (52 vs 45) makes Purbeck Stone the marginally brighter of the two.
At LRV 45 vs 30, Cystern is decisively the brighter choice.
At LRV 60 vs 45, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 45), opening up a space where Cystern encloses it.
Cystern reflects far more light (LRV 45 vs 27), opening up a space where Denim Drift encloses it.
Their light reflectance is nearly identical (LRV 45 vs 43), so neither reads brighter in a room.
Tranquil Dawn reads slightly lighter (LRV 55 vs 45), a gap that shows most in low-lit rooms.
With LRVs of 45 and 44, the two reflect almost the same amount of light.
At LRV 84 vs 45, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 45), opening up a space where Cystern encloses it.
Shoji White reflects far more light (LRV 74 vs 45), opening up a space where Cystern encloses it.
Cystern reflects far more light (LRV 45 vs 12), opening up a space where Pewter Green encloses it.
Cystern reflects far more light (LRV 45 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 45), opening up a space where Cystern encloses it.
Cystern reflects far more light (LRV 45 vs 12), opening up a space where Vintage Vogue encloses it.
With LRVs of 45 and 45, the two reflect almost the same amount of light.
At LRV 45 vs 31, Cystern is decisively the brighter choice.