Eider White vs Sea Mariner
Eider White and Sea Mariner come from the same Sherwin-Williams collection. Hue-wise, Eider White belongs to the greige-grey family and Sea Mariner to the blue-grey family. The 67-point LRV gap — 73 for Eider White vs 7 for Sea Mariner — means Eider White will open up a space more effectively. Where Eider White leans warm, Sea Mariner reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 58.4 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.
Eider White vs Sea Mariner in Real Spaces
2 real rooms side by side. Seeing Eider White 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.
Mudroom
In a hardworking space like a mudroom, the depth and warmth of a color reads differently than in a quieter room. The LRV gap is large enough that Eider White will make the room feel meaningfully brighter than Sea Mariner would.
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. Eider White returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Eider White vs Sea Mariner Simulated Comparison
5 simulated room previews — drag the slider on each to see Eider White 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 Eider White comparisons
See how Eider White stacks up against other well-photographed colors across different brands and tones.
