Ambler Slate vs Black grey
Where Ambler Slate belongs to Benjamin Moore's range, Black grey is a RAL Classic color. Ambler Slate reads as grey, while Black grey reads as blue-grey — two distinct hue families, not close cousins. Ambler Slate (LRV 12) reflects noticeably more light than Black grey (LRV 6), a difference of 5 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 17.1, 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 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Ambler Slate vs Black grey in Real Spaces
2 real rooms side by side. Seeing Ambler Slate and Black grey 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. Ambler Slate reads slightly lighter here — a subtle but real difference in how open the space feels.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The brightness difference is modest but present — Ambler Slate gives the walls a little more lift.
Color Details
Ambler Slate vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Ambler Slate on one side and Black grey 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 Ambler Slate comparisons
See how Ambler Slate stacks up against other well-photographed colors across different brands and tones.
