Gray Mountain vs Cement grey
Where Gray Mountain belongs to Benjamin Moore's range, Cement grey is a RAL Classic color. These are both greys, so the question isn't which hue to choose — it's where within grey to land. Cement grey (LRV 24) reflects noticeably more light than Gray Mountain (LRV 19), a difference of 6 points that becomes especially apparent in rooms with limited natural light. The ΔE 9.9 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Gray Mountain vs Cement grey in Real Spaces
1 real room side by side. Gray Mountain and Cement grey are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The brightness difference is modest but present — Cement grey gives the walls a little more lift.
Color Details
Gray Mountain vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Gray Mountain on one side and Cement 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 Gray Mountain comparisons
See how Gray Mountain stacks up against other well-photographed colors across different brands and tones.
