Coastline vs River Gorge Gray
Both from Benjamin Moore's palette. Hue-wise, Coastline belongs to the blue-grey family and River Gorge Gray to the greige-grey family. They have nearly identical light reflectance values (34 vs 33), so they'll read as similarly Medium in most lighting conditions. Coastline runs blue while River Gorge Gray is decidedly yellow and red, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 16.9, 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
Coastline vs River Gorge Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastline on one side and River Gorge Gray 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 Coastline comparisons
See how Coastline stacks up against other well-photographed colors across different brands and tones.
