Gray Mountain vs Grey Blue
Where Gray Mountain belongs to Benjamin Moore's range, Grey Blue is a RAL Classic color. Hue-wise, Gray Mountain belongs to the grey family and Grey Blue to the blue-grey family. Gray Mountain (LRV 19) reflects noticeably more light than Grey Blue (LRV 7), a difference of 11 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 18.6, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Gray Mountain vs Grey Blue in Real Spaces
1 real room side by side. Seeing Gray Mountain and Grey Blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Gray Mountain will make the room feel meaningfully brighter than Grey Blue would.
Color Details
Gray Mountain vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Gray Mountain on one side and Grey Blue 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.
