Galt Blue vs Ammonite
Galt Blue is a Benjamin Moore color while Ammonite comes from Farrow & Ball. Hue-wise, Galt Blue belongs to the blue-green family and Ammonite to the beige-greige family. At LRV 69 vs 64, Ammonite will read as the brighter of the two — a 5-point gap that matters most in north-facing or low-light rooms. The tonal difference — Galt Blue's green character against Ammonite's warm — becomes most visible against white trim or in morning light. At ΔE 10.8, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Galt Blue vs Ammonite in Real Spaces
3 real rooms side by side. Seeing Galt Blue 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.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Ammonite has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Dining Room
Dining room light is typically the warmest in the house, which shifts both colors toward the red end of the spectrum compared to daylight. Ammonite reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Galt Blue vs Ammonite Simulated Comparison
5 simulated room previews — drag the slider on each to see Galt Blue 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 Galt Blue comparisons
See how Galt Blue stacks up against other well-photographed colors across different brands and tones.
