RAL 840-M vs Nocturnal Green
RAL 840-M (RAL Effect) and Nocturnal Green (Valspar) come from different manufacturers. Hue-wise, RAL 840-M belongs to the grey family and Nocturnal Green to the blue-green family. The 3-point LRV gap — 6 for RAL 840-M vs 3 for Nocturnal Green — means RAL 840-M will open up a space more effectively. A ΔE of 10.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
RAL 840-M vs Nocturnal Green in Real Spaces
2 real rooms side by side. Seeing RAL 840-M 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.
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. RAL 840-M has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
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. RAL 840-M has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
RAL 840-M vs Nocturnal Green Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 840-M 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 RAL 840-M comparisons
See how RAL 840-M stacks up against other well-photographed colors across different brands and tones.
