Shadow Mountain vs Ambler Slate
Shadow Mountain (Behr) and Ambler Slate (Benjamin Moore) come from different manufacturers. These are both greys, so the question isn't which hue to choose — it's where within grey to land. Their light reflectance values are nearly the same — 10 vs 12 — so neither will read significantly brighter or darker than the other. Where Shadow Mountain leans red, Ambler Slate reads blue — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 1.1 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Shadow Mountain vs Ambler Slate in Real Spaces
1 real room side by side. Shadow Mountain and Ambler Slate are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
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. In photos like these you're seeing the difference at its most direct. In a finished room, the distinction is there but not dramatic.
Color Details
Shadow Mountain vs Ambler Slate Simulated Comparison
5 simulated room previews — drag the slider on each to see Shadow Mountain on one side and Ambler Slate 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 Shadow Mountain comparisons
See how Shadow Mountain stacks up against other well-photographed colors across different brands and tones.










































