Rock Gray vs Ammonite
Where Rock Gray belongs to Benjamin Moore's range, Ammonite is a Farrow & Ball color. Hue-wise, Rock Gray belongs to the grey family and Ammonite to the beige-greige family. Ammonite (LRV 69) reflects noticeably more light than Rock Gray (LRV 24), a difference of 45 points that becomes especially apparent in rooms with limited natural light. Rock Gray runs blue while Ammonite is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 32.8, 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 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Rock Gray vs Ammonite in Real Spaces
3 real rooms side by side. Seeing Rock Gray and Ammonite in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Ammonite reflects noticeably more light off the walls, making the space read more open than Rock Gray.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Ammonite reflects noticeably more light off the walls, making the space read more open than Rock Gray.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Ammonite reflects noticeably more light off the walls, making the space read more open than Rock Gray.
Color Details
Rock Gray vs Ammonite Simulated Comparison
5 simulated room previews — drag the slider on each to see Rock Gray on one side and Ammonite 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 Rock Gray comparisons
See how Rock Gray stacks up against other well-photographed colors across different brands and tones.
