On The Rocks vs Sea Mariner
On The Rocks and Sea Mariner come from the same Sherwin-Williams collection. Hue-wise, On The Rocks belongs to the grey family and Sea Mariner to the blue-grey family. The 55-point LRV gap — 62 for On The Rocks vs 7 for Sea Mariner — means On The Rocks will open up a space more effectively. Where On The Rocks leans neutral, Sea Mariner reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 52.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
On The Rocks vs Sea Mariner Simulated Comparison
5 simulated room previews — drag the slider on each to see On The Rocks 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 On The Rocks comparisons
See how On The Rocks stacks up against other well-photographed colors across different brands and tones.
