Black grey vs Mountain Pass
Black grey (RAL Classic) and Mountain Pass (Sherwin-Williams) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. The 7-point LRV gap — 14 for Mountain Pass vs 6 for Black grey — means Mountain Pass will open up a space more effectively. A ΔE of 23.5 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 Mountain Pass in Real Spaces
1 real room side by side. Seeing Black grey and Mountain Pass 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. Mountain Pass reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Black grey vs Mountain Pass Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Mountain Pass 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.
