Coastline vs Harmony paint color comparison

Coastline vs Harmony

CoastlineBenjamin MoorevsHarmonyBenjamin MooreΔE 29.7 — Very different colors

Both from Benjamin Moore's palette. Hue-wise, Coastline belongs to the blue-grey family and Harmony to the beige family. Harmony (LRV 60) reflects noticeably more light than Coastline (LRV 34), a difference of 26 points that becomes especially apparent in rooms with limited natural light. Coastline runs blue while Harmony is decidedly red, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 29.7, 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
Benjamin Moore · AF-570
LRV33.9
BrandBenjamin Moore
NumberAF-570
UndertoneBlue
TemperatureCool
BrightnessMedium
Harmony
Benjamin Moore · AF-90
LRV59.8
BrandBenjamin Moore
NumberAF-90
UndertoneRed
TemperatureWarm
BrightnessLight

Coastline vs Harmony Simulated Comparison

5 simulated room previews — drag the slider on each to see Coastline on one side and Harmony 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.