Black grey vs RAL 740-M
Black grey (RAL Classic) and RAL 740-M (RAL Effect) come from different manufacturers. Hue-wise, Black grey belongs to the blue-grey family and RAL 740-M to the blue-green family. The 5-point LRV gap — 11 for RAL 740-M vs 6 for Black grey — means RAL 740-M will open up a space more effectively. A ΔE of 31.2 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.
Black grey vs RAL 740-M in Real Spaces
1 real room side by side. Seeing Black grey and RAL 740-M 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. RAL 740-M reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Black grey vs RAL 740-M Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and RAL 740-M 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.
