Ammonite vs Slow Green
Where Ammonite belongs to Farrow & Ball's range, Slow Green is a Sherwin-Williams color. Ammonite reads as beige-greige, while Slow Green reads as green — two distinct hue families, not close cousins. Ammonite (LRV 69) reflects noticeably more light than Slow Green (LRV 64), a difference of 5 points that becomes especially apparent in rooms with limited natural light. Ammonite runs warm while Slow Green is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 7.9 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Ammonite vs Slow Green in Real Spaces
1 real room side by side. Ammonite and Slow Green 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.
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 has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Ammonite vs Slow Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Ammonite on one side and Slow 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 Ammonite comparisons
See how Ammonite stacks up against other well-photographed colors across different brands and tones.
