RAL 180-1 vs Sea Mariner
Where RAL 180-1 belongs to RAL Effect's range, Sea Mariner is a Sherwin-Williams color. RAL 180-1 reads as blue, while Sea Mariner reads as blue-grey — two distinct hue families, not close cousins. RAL 180-1 (LRV 49) reflects noticeably more light than Sea Mariner (LRV 7), a difference of 42 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 44.4, 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.
RAL 180-1 vs Sea Mariner in Real Spaces
1 real room side by side. Seeing RAL 180-1 and Sea Mariner in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. RAL 180-1 reflects noticeably more light off the walls, making the space read more open than Sea Mariner.
Color Details
RAL 180-1 vs Sea Mariner Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 180-1 on one side and Sea 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 RAL 180-1 comparisons
See how RAL 180-1 stacks up against other well-photographed colors across different brands and tones.










































