Ebony Slate vs Sea Mariner
Ebony Slate (Benjamin Moore) and Sea Mariner (Sherwin-Williams) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. Their light reflectance values are nearly the same — 9 vs 7 — so neither will read significantly brighter or darker than the other. Where Ebony Slate leans blue and purple, Sea Mariner reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 2.9 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Ebony Slate vs Sea Mariner in Real Spaces
1 real room side by side. Ebony Slate 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
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Ebony Slate reads more restrained here, while Sea Mariner adds a sense of enclosure and warmth.
Color Details
Ebony Slate vs Sea Mariner Simulated Comparison
5 simulated room previews — drag the slider on each to see Ebony Slate 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 Ebony Slate comparisons
See how Ebony Slate stacks up against other well-photographed colors across different brands and tones.
