Britannia Blue vs Cement grey
Where Britannia Blue belongs to Benjamin Moore's range, Cement grey is a RAL Classic color. Britannia Blue reads as blue-grey, while Cement grey reads as grey — two distinct hue families, not close cousins. Cement grey (LRV 24) reflects noticeably more light than Britannia Blue (LRV 18), a difference of 6 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 15.0, 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 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Britannia Blue vs Cement grey in Real Spaces
3 real rooms side by side. Seeing Britannia Blue and Cement grey in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Cement grey gives the walls a little more lift.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Cement grey reads slightly lighter here — a subtle but real difference in how open the space feels.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Cement grey reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Britannia Blue vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Britannia Blue 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 Britannia Blue comparisons
See how Britannia Blue stacks up against other well-photographed colors across different brands and tones.
