Warm Onyx vs Nocturnal Green
Warm Onyx (Behr) and Nocturnal Green (Valspar) come from different manufacturers. Hue-wise, Warm Onyx belongs to the grey family and Nocturnal Green to the blue-green family. The 4-point LRV gap — 7 for Warm Onyx vs 3 for Nocturnal Green — means Warm Onyx will open up a space more effectively. A ΔE of 11.2 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.
Warm Onyx vs Nocturnal Green in Real Spaces
1 real room side by side. Seeing Warm Onyx and Nocturnal Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Warm Onyx has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Warm Onyx vs Nocturnal Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Warm Onyx 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 Warm Onyx comparisons
See how Warm Onyx stacks up against other well-photographed colors across different brands and tones.
