Rocky Mountain Sky vs Windmill Lane
Where Rocky Mountain Sky belongs to Benjamin Moore's range, Windmill Lane is a Little Greene color. Hue-wise, Rocky Mountain Sky belongs to the blue family and Windmill Lane to the green-grey family. They have nearly identical light reflectance values (31 vs 31), so they'll read as similarly Medium in most lighting conditions. Rocky Mountain Sky runs blue while Windmill Lane is decidedly green, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 49.7, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Rocky Mountain Sky vs Windmill Lane Simulated Comparison
5 simulated room previews — drag the slider on each to see Rocky Mountain Sky on one side and Windmill Lane 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 Rocky Mountain Sky comparisons
See how Rocky Mountain Sky stacks up against other well-photographed colors across different brands and tones.








































