Black grey vs Nocturnal Green
Black grey is a RAL Classic color while Nocturnal Green comes from Valspar. Black grey reads as blue-grey, while Nocturnal Green reads as blue-green — two distinct hue families, not close cousins. At LRV 6 vs 3, Black grey will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. With a ΔE of 2.0, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Black grey vs Nocturnal Green in Real Spaces
2 real rooms side by side. Black grey and Nocturnal Green are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The brightness difference is modest but present — Black grey gives the walls a little more lift.
Front Door
Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. Black grey has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Black grey vs Nocturnal Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Nocturnal Green 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 Black grey comparisons
See how Black grey stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 6), opening up a space where Black grey encloses it.
At LRV 83 vs 6, White Dove is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 6 vs 6), so neither reads brighter in a room.
Purbeck Stone reflects far more light (LRV 52 vs 6), opening up a space where Black grey encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 6), opening up a space where Black grey encloses it.
At LRV 52 vs 6, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 6), opening up a space where Black grey encloses it.
At LRV 58 vs 6, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 6, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 6), opening up a space where Black grey encloses it.
With LRVs of 6 and 4, the two reflect almost the same amount of light.
At LRV 55 vs 6, Tranquil Dawn is decisively the brighter choice.
A 7-point LRV gap (13 vs 6) makes Bancha the marginally brighter of the two.
At LRV 44 vs 6, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 6), opening up a space where Black grey encloses it.
Artichoke reflects far more light (LRV 21 vs 6), opening up a space where Black grey encloses it.
At LRV 66 vs 6, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 6, Shoji White is decisively the brighter choice.
At LRV 83 vs 6, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 6), opening up a space where Black grey encloses it.
A 5-point LRV gap (12 vs 6) makes Pewter Green the marginally brighter of the two.
Their light reflectance is nearly identical (LRV 8 vs 6), so neither reads brighter in a room.
At LRV 68 vs 6, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 6), opening up a space where Black grey encloses it.
A 5-point LRV gap (12 vs 6) makes Vintage Vogue the marginally brighter of the two.
At LRV 45 vs 6, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 6), opening up a space where Black grey encloses it.