S 7500-N vs Sea Mariner
Where S 7500-N belongs to NCS's range, Sea Mariner is a Sherwin-Williams color. Hue-wise, S 7500-N belongs to the grey family and Sea Mariner to the blue-grey family. They have nearly identical light reflectance values (8 vs 7), so they'll read as similarly Dark in most lighting conditions. S 7500-N runs neutral while Sea Mariner is decidedly cool, which means they'll respond very differently to warm vs cool light sources. The ΔE 8.7 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
S 7500-N vs Sea Mariner in Real Spaces
1 real room side by side. S 7500-N 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.
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 S 7500-N keeps things cooler and crisper.
Color Details
S 7500-N vs Sea Mariner Simulated Comparison
5 simulated room previews — drag the slider on each to see S 7500-N 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 S 7500-N comparisons
See how S 7500-N stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 8), opening up a space where S 7500-N encloses it.
At LRV 52 vs 8, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 8, Evergreen Fog is decisively the brighter choice.
At LRV 60 vs 8, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 8), opening up a space where S 7500-N encloses it.
Denim Drift reflects far more light (LRV 27 vs 8), opening up a space where S 7500-N encloses it.
At LRV 43 vs 8, French Gray is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 8), opening up a space where S 7500-N encloses it.
Hardwick White reflects far more light (LRV 44 vs 8), opening up a space where S 7500-N encloses it.
At LRV 84 vs 8, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 8), opening up a space where S 7500-N encloses it.
Shoji White reflects far more light (LRV 74 vs 8), opening up a space where S 7500-N encloses it.
Pewter Green reads slightly lighter (LRV 12 vs 8), a gap that shows most in low-lit rooms.
With LRVs of 8 and 8, the two reflect almost the same amount of light.
Skimming Stone reflects far more light (LRV 68 vs 8), opening up a space where S 7500-N encloses it.
Vintage Vogue reads slightly lighter (LRV 12 vs 8), a gap that shows most in low-lit rooms.
Saybrook Sage reflects far more light (LRV 45 vs 8), opening up a space where S 7500-N encloses it.
At LRV 31 vs 8, Pale Green is decisively the brighter choice.