Nocturne Blue vs Cement grey
Where Nocturne Blue belongs to Behr's range, Cement grey is a RAL Classic color. Hue-wise, Nocturne Blue belongs to the blue family and Cement grey to the grey family. Cement grey (LRV 24) reflects noticeably more light than Nocturne Blue (LRV 7), a difference of 17 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 28.2, 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 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Nocturne Blue vs Cement grey in Real Spaces
4 real rooms side by side. Seeing Nocturne Blue and Cement grey 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Cement grey will make the room feel meaningfully brighter than Nocturne Blue would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Cement grey reflects noticeably more light off the walls, making the space read more open than Nocturne Blue.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Cement grey will make the room feel meaningfully brighter than Nocturne Blue would.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Cement grey reflects noticeably more light off the walls, making the space read more open than Nocturne Blue.
Color Details
Nocturne Blue vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Nocturne Blue on one side and Cement grey 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 Nocturne Blue comparisons
See how Nocturne Blue stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 7), opening up a space where Nocturne Blue encloses it.
At LRV 83 vs 7, White Dove is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 7 vs 6), so neither reads brighter in a room.
Purbeck Stone reflects far more light (LRV 52 vs 7), opening up a space where Nocturne Blue encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 7), opening up a space where Nocturne Blue encloses it.
At LRV 52 vs 7, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 7), opening up a space where Nocturne Blue encloses it.
At LRV 58 vs 7, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 7, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 7), opening up a space where Nocturne Blue encloses it.
With LRVs of 7 and 4, the two reflect almost the same amount of light.
At LRV 55 vs 7, Tranquil Dawn is decisively the brighter choice.
A 7-point LRV gap (13 vs 7) makes Bancha the marginally brighter of the two.
At LRV 44 vs 7, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 7), opening up a space where Nocturne Blue encloses it.
Artichoke reflects far more light (LRV 21 vs 7), opening up a space where Nocturne Blue encloses it.
At LRV 66 vs 7, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 7, Shoji White is decisively the brighter choice.
At LRV 83 vs 7, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 7), opening up a space where Nocturne Blue encloses it.
A 5-point LRV gap (12 vs 7) makes Pewter Green the marginally brighter of the two.
Their light reflectance is nearly identical (LRV 8 vs 7), so neither reads brighter in a room.
At LRV 68 vs 7, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 7), opening up a space where Nocturne Blue encloses it.
A 5-point LRV gap (12 vs 7) makes Vintage Vogue the marginally brighter of the two.
At LRV 45 vs 7, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 7), opening up a space where Nocturne Blue encloses it.