Ambler Slate vs Obsidian Green
Where Ambler Slate belongs to Benjamin Moore's range, Obsidian Green is a Little Greene color. Ambler Slate reads as grey, while Obsidian Green reads as green — two distinct hue families, not close cousins. Ambler Slate (LRV 12) reflects noticeably more light than Obsidian Green (LRV 1), a difference of 11 points that becomes especially apparent in rooms with limited natural light. Ambler Slate runs blue while Obsidian Green is decidedly green, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 28.0, 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 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Ambler Slate vs Obsidian Green in Real Spaces
2 real rooms side by side. Seeing Ambler Slate and Obsidian Green 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 reflects noticeably more light off the walls, making the space read more open than Obsidian Green.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Ambler Slate will make the room feel meaningfully brighter than Obsidian Green would.
Color Details
Ambler Slate vs Obsidian Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Ambler Slate on one side and Obsidian Green 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.












































