Black grey vs RAL 140-M
Where Black grey belongs to RAL Classic's range, RAL 140-M is a RAL Effect color. Black grey reads as blue-grey, while RAL 140-M reads as beige-greige — two distinct hue families, not close cousins. RAL 140-M (LRV 35) reflects noticeably more light than Black grey (LRV 6), a difference of 29 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 50.0, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Black grey vs RAL 140-M in Real Spaces
1 real room side by side. Seeing Black grey and RAL 140-M in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. RAL 140-M reflects noticeably more light off the walls, making the space read more open than Black grey.
Color Details
Black grey vs RAL 140-M Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and RAL 140-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.
