Iron Ore vs Sea Mariner
Both from Sherwin-Williams's palette. Iron Ore reads as grey, while Sea Mariner reads as blue-grey — two distinct hue families, not close cousins. They have nearly identical light reflectance values (6 vs 7), so they'll read as similarly Dark in most lighting conditions. Iron Ore runs neutral while Sea Mariner is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 8.6 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Iron Ore vs Sea Mariner in Real Spaces
2 real rooms side by side. Iron Ore and Sea Mariner are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Mudroom
Mudrooms are seen in passing, often under whatever light comes through the door — a context that favors colors with some depth. Iron Ore reads more restrained here, while Sea Mariner adds a sense of enclosure and warmth.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Sea Mariner brings more warmth to the space, while Iron Ore keeps things cooler and crisper.
Color Details
Iron Ore vs Sea Mariner Simulated Comparison
5 simulated room previews — drag the slider on each to see Iron Ore 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 Iron Ore comparisons
See how Iron Ore stacks up against other well-photographed colors across different brands and tones.
