Coastal Plain vs H444
Coastal Plain is a Sherwin-Williams color while H444 comes from Tikkurila. These are both green-greys, so the question isn't which hue to choose — it's where within green-grey to land. At LRV 41 vs 37, H444 will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. At ΔE 4.5, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. 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 H444 Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastal Plain on one side and H444 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.








































