Coastal Grey vs River Valley
Both are Dulux colors. Coastal Grey reads as blue-grey, while River Valley reads as blue — two distinct hue families, not close cousins. At LRV 56 vs 44, Coastal Grey will read as the brighter of the two — a 12-point gap that matters most in north-facing or low-light rooms. They share a cool quality — useful to know if you're layering them in the same space. At ΔE 8.6, 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 Grey vs River Valley Simulated Comparison
5 simulated room previews — drag the slider on each to see Coastal Grey on one side and River Valley 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 Grey comparisons
See how Coastal Grey stacks up against other well-photographed colors across different brands and tones.
