Sea Mariner vs Techno Gray

Both are Sherwin-Williams colors. Sea Mariner reads as blue-grey, while Techno Gray reads as greige-grey — two distinct hue families, not close cousins. At LRV 49 vs 7, Techno Gray will read as the brighter of the two — a 42-point gap that matters most in north-facing or low-light rooms. The tonal difference — Sea Mariner's cool character against Techno Gray's warm — becomes most visible against white trim or in morning light. At ΔE 46.6, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.