Coastal Plain vs Moderne White
Both are Sherwin-Williams colors. Coastal Plain reads as green-grey, while Moderne White reads as beige-greige — two distinct hue families, not close cousins. At LRV 74 vs 37, Moderne White will read as the brighter of the two — a 38-point gap that matters most in north-facing or low-light rooms. The tonal difference — Coastal Plain's neutral character against Moderne White's warm — becomes most visible against white trim or in morning light. At ΔE 22.9, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Coastal Plain vs Moderne White in Real Spaces
3 real rooms side by side. Seeing Coastal Plain and Moderne White in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The LRV gap is large enough that Moderne White will make the room feel meaningfully brighter than Coastal Plain would.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The LRV gap is large enough that Moderne White will make the room feel meaningfully brighter than Coastal Plain would.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Moderne White will make the room feel meaningfully brighter than Coastal Plain would.
Color Details
Coastal Plain vs Moderne White Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastal Plain on one side and Moderne White 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.