Coastline vs Thunder
Both from Benjamin Moore's palette. Hue-wise, Coastline belongs to the blue-grey family and Thunder to the greige-grey family. Thunder (LRV 48) reflects noticeably more light than Coastline (LRV 34), a difference of 14 points that becomes especially apparent in rooms with limited natural light. Coastline runs blue while Thunder is decidedly red, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 17.3, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Coastline vs Thunder in Real Spaces
2 real rooms side by side. Seeing Coastline and Thunder in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Mudroom
Mudrooms are seen in passing, often under whatever light comes through the door — a context that favors colors with some depth. Thunder returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Thunder reflects noticeably more light off the walls, making the space read more open than Coastline.
Color Details
Coastline vs Thunder Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastline on one side and Thunder 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.