Blue Moon Bay vs Ammonite
Where Blue Moon Bay belongs to Behr's range, Ammonite is a Farrow & Ball color. Blue Moon Bay reads as blue, while Ammonite reads as beige-greige — two distinct hue families, not close cousins. Ammonite (LRV 69) reflects noticeably more light than Blue Moon Bay (LRV 19), a difference of 50 points that becomes especially apparent in rooms with limited natural light. Blue Moon Bay runs blue while Ammonite is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 40.3, 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
Blue Moon Bay vs Ammonite Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Moon Bay 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 Blue Moon Bay comparisons
See how Blue Moon Bay stacks up against other well-photographed colors across different brands and tones.








































