Cavern Moss vs Green Onyx
Where Cavern Moss belongs to PPG's range, Green Onyx is a Sherwin-Williams color. Cavern Moss reads as grey, while Green Onyx reads as green-greige — two distinct hue families, not close cousins. They have nearly identical light reflectance values (29 vs 31), so they'll read as similarly Medium in most lighting conditions. At ΔE 2.6, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Cavern Moss vs Green Onyx Simulated Comparison
5 simulated room previews — drag the slider on each to see Cavern Moss on one side and Green Onyx 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 Cavern Moss comparisons
See how Cavern Moss stacks up against other well-photographed colors across different brands and tones.
