Coastal Plain vs Plummy
Both are Sherwin-Williams colors. Coastal Plain reads as green-grey, while Plummy reads as grey — two distinct hue families, not close cousins. At LRV 37 vs 11, Coastal Plain will read as the brighter of the two — a 25-point gap that matters most in north-facing or low-light rooms. The tonal difference — Coastal Plain's neutral character against Plummy's cool — becomes most visible against white trim or in morning light. At ΔE 38.4, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Coastal Plain vs Plummy Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastal Plain on one side and Plummy 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 Plain comparisons
See how Coastal Plain stacks up against other well-photographed colors across different brands and tones.
