Windmill Lane vs Impromptu
Where Windmill Lane belongs to Little Greene's range, Impromptu is a Sherwin-Williams color. Windmill Lane reads as green-grey, while Impromptu reads as blue — two distinct hue families, not close cousins. Windmill Lane (LRV 31) reflects noticeably more light than Impromptu (LRV 23), a difference of 8 points that becomes especially apparent in rooms with limited natural light. Windmill Lane runs green while Impromptu is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 38.4, 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
Windmill Lane vs Impromptu Simulated Comparison
5 simulated room previews — drag the slider on each to see Windmill Lane on one side and Impromptu 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 Windmill Lane comparisons
See how Windmill Lane stacks up against other well-photographed colors across different brands and tones.
