Iron Gate vs Sea Mariner
Both from Sherwin-Williams's palette. Hue-wise, Iron Gate belongs to the beige-greige family and Sea Mariner to the blue-grey family. Sea Mariner (LRV 7) reflects noticeably more light than Iron Gate (LRV 4), a difference of 3 points that becomes especially apparent in rooms with limited natural light. Iron Gate runs warm while Sea Mariner is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 17.2, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Iron Gate vs Sea Mariner Simulated Comparison
5 simulated room previews — drag the slider on each to see Iron Gate 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 Gate comparisons
See how Iron Gate stacks up against other well-photographed colors across different brands and tones.
