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.
At LRV 83 vs 19, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 19), opening up a space where Gray Mountain encloses it.
At LRV 19 vs 6, Gray Mountain is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 19), opening up a space where Gray Mountain encloses it.
Evergreen Fog reads slightly lighter (LRV 30 vs 19), a gap that shows most in low-lit rooms.
At LRV 52 vs 19, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 19), opening up a space where Gray Mountain encloses it.
At LRV 58 vs 19, Accessible Beige is decisively the brighter choice.
A 9-point LRV gap (27 vs 19) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 19), opening up a space where Gray Mountain encloses it.
Gray Mountain reflects far more light (LRV 19 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 19, Tranquil Dawn is decisively the brighter choice.
A 5-point LRV gap (19 vs 13) makes Gray Mountain the marginally brighter of the two.
At LRV 44 vs 19, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 19), opening up a space where Gray Mountain encloses it.
With LRVs of 21 and 19, the two reflect almost the same amount of light.
At LRV 66 vs 19, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 19, Shoji White is decisively the brighter choice.
At LRV 83 vs 19, Snowbound is decisively the brighter choice.
A 7-point LRV gap (19 vs 12) makes Gray Mountain the marginally brighter of the two.
At LRV 68 vs 19, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 19), opening up a space where Gray Mountain encloses it.
Calamine reflects far more light (LRV 68 vs 19), opening up a space where Gray Mountain encloses it.
Treron reads slightly lighter (LRV 25 vs 19), a gap that shows most in low-lit rooms.
A 7-point LRV gap (19 vs 12) makes Gray Mountain the marginally brighter of the two.
At LRV 45 vs 19, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 19), opening up a space where Gray Mountain encloses it.
Gray Mountain reads slightly lighter (LRV 19 vs 7), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 19), opening up a space where Gray Mountain encloses it.
Just Walnut reflects far more light (LRV 72 vs 19), opening up a space where Gray Mountain encloses it.