Ammonite vs Castlegate
Ammonite (Farrow & Ball) and Castlegate (Sherwin-Williams) come from different manufacturers. Ammonite reads as beige-greige, while Castlegate reads as grey — two distinct hue families, not close cousins. The 32-point LRV gap — 69 for Ammonite vs 37 for Castlegate — means Ammonite will open up a space more effectively. Where Ammonite leans warm, Castlegate reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 20.1 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Ammonite vs Castlegate Simulated Comparison
5 simulated room previews — drag the slider on each to see Ammonite on one side and Castlegate 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.
