Coastal Storm vs Ammonite
Where Coastal Storm belongs to Behr's range, Ammonite is a Farrow & Ball color. Coastal Storm reads as grey, while Ammonite reads as beige-greige — two distinct hue families, not close cousins. Ammonite (LRV 69) reflects noticeably more light than Coastal Storm (LRV 21), a difference of 48 points that becomes especially apparent in rooms with limited natural light. Coastal Storm runs green while Ammonite is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 33.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Coastal Storm vs Ammonite Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastal Storm 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 Coastal Storm comparisons
See how Coastal Storm stacks up against other well-photographed colors across different brands and tones.
