Marine Blue vs Cement grey
Marine Blue (Little Greene) and Cement grey (RAL Classic) come from different manufacturers. Marine Blue reads as blue, while Cement grey reads as grey — two distinct hue families, not close cousins. The 20-point LRV gap — 24 for Cement grey vs 4 for Marine Blue — means Cement grey will open up a space more effectively. A ΔE of 36.4 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Marine Blue vs Cement grey in Real Spaces
2 real rooms side by side. Seeing Marine 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.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Cement grey returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Cement grey returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Marine Blue vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Marine 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 Marine Blue comparisons
See how Marine Blue stacks up against other well-photographed colors across different brands and tones.












































