Ammonite vs Glass Bead
Where Ammonite belongs to Farrow & Ball's range, Glass Bead is a Sherwin-Williams color. Ammonite reads as beige-greige, while Glass Bead reads as blue-white — two distinct hue families, not close cousins. Glass Bead (LRV 77) reflects noticeably more light than Ammonite (LRV 69), a difference of 9 points that becomes especially apparent in rooms with limited natural light. Ammonite runs warm while Glass Bead is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 7.5 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. 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 Glass Bead Simulated Comparison
5 simulated room previews — drag the slider on each to see Ammonite on one side and Glass Bead 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.
