Moss Rock vs Brown grey
Where Moss Rock belongs to PPG's range, Brown grey is a RAL Classic color. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. They have nearly identical light reflectance values (10 vs 11), so they'll read as similarly Dark in most lighting conditions. The ΔE 4.7 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
Moss Rock vs Brown grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Moss Rock on one side and Brown grey 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 Moss Rock comparisons
See how Moss Rock stacks up against other well-photographed colors across different brands and tones.
