Windy City vs Grey Blue
Windy City (Benjamin Moore) and Grey Blue (RAL Classic) come from different manufacturers. Hue-wise, Windy City belongs to the grey family and Grey Blue to the blue-grey family. The 10-point LRV gap — 17 for Windy City vs 7 for Grey Blue — means Windy City will open up a space more effectively. A ΔE of 18.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Windy City vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Windy City on one side and Grey Blue 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 Windy City comparisons
See how Windy City stacks up against other well-photographed colors across different brands and tones.








































