Horizon Gray vs Ammonite
Where Horizon Gray belongs to Benjamin Moore's range, Ammonite is a Farrow & Ball color. Hue-wise, Horizon Gray belongs to the greige-grey family and Ammonite to the beige-greige family. Ammonite (LRV 69) reflects noticeably more light than Horizon Gray (LRV 51), a difference of 18 points that becomes especially apparent in rooms with limited natural light. Horizon Gray runs yellow while Ammonite is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 10.1, 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.
Horizon Gray vs Ammonite in Real Spaces
2 real rooms side by side. Seeing Horizon 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 Horizon Gray.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Ammonite returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Horizon Gray vs Ammonite Simulated Comparison
5 simulated room previews — drag the slider on each to see Horizon 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 Horizon Gray comparisons
See how Horizon Gray stacks up against other well-photographed colors across different brands and tones.
