Cement grey vs Mariner
Where Cement grey belongs to RAL Classic's range, Mariner is a Sherwin-Williams color. Hue-wise, Cement grey belongs to the grey family and Mariner to the blue family. Mariner (LRV 46) reflects noticeably more light than Cement grey (LRV 24), a difference of 22 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 33.1, 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 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cement grey vs Mariner in Real Spaces
2 real rooms side by side. Seeing Cement grey and Mariner in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. Mariner reflects noticeably more light off the walls, making the space read more open than Cement grey.
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 Mariner will make the room feel meaningfully brighter than Cement grey would.
Color Details
Cement grey vs Mariner Simulated Comparison
5 simulated room previews — drag the slider on each to see Cement grey on one side and Mariner 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 Cement grey comparisons
See how Cement grey stacks up against other well-photographed colors across different brands and tones.
