Mortar vs Sea Mariner paint color comparison

Mortar vs Sea Mariner

MortarSherwin-WilliamsvsSea MarinerSherwin-WilliamsΔE 59.0 — Very different colors

Mortar and Sea Mariner come from the same Sherwin-Williams collection. Mortar reads as beige-greige, while Sea Mariner reads as blue-grey — two distinct hue families, not close cousins. The 67-point LRV gap — 74 for Mortar vs 7 for Sea Mariner — means Mortar will open up a space more effectively. Where Mortar leans warm, Sea Mariner reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 59.0 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.

Color Details

Mortar
Sherwin-Williams · 9584
LRV73.7
BrandSherwin-Williams
Number9584
Undertone—
TemperatureWarm
BrightnessLight
Sea Mariner
Sherwin-Williams · 9640
LRV6.7
BrandSherwin-Williams
Number9640
Undertone—
TemperatureCool
BrightnessDark

Mortar vs Sea Mariner Simulated Comparison

5 simulated room previews — drag the slider on each to see Mortar on one side and Sea Mariner on the other.

Bathroom
Bedroom
House
Kitchen Cabinets
Living Room

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.