Coastal Blue vs Pewter Green
Where Coastal Blue belongs to Jotun's range, Pewter Green is a Sherwin-Williams color. Hue-wise, Coastal Blue belongs to the blue-grey family and Pewter Green to the green-grey family. Coastal Blue (LRV 19) reflects noticeably more light than Pewter Green (LRV 12), a difference of 7 points that becomes especially apparent in rooms with limited natural light. Coastal Blue runs cool while Pewter Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 14.3, 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.
Coastal Blue vs Pewter Green in Real Spaces
2 real rooms side by side. Seeing Coastal Blue and Pewter Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Coastal Blue gives the walls a little more lift.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Coastal Blue reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Coastal Blue vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastal Blue on one side and Pewter Green 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 Coastal Blue comparisons
See how Coastal Blue stacks up against other well-photographed colors across different brands and tones.
