Windmill Lane vs RAL 620-5
Windmill Lane (Little Greene) and RAL 620-5 (RAL Effect) come from different manufacturers. Windmill Lane reads as green-grey, while RAL 620-5 reads as blue — two distinct hue families, not close cousins. The 27-point LRV gap — 31 for Windmill Lane vs 4 for RAL 620-5 — means Windmill Lane will open up a space more effectively. A ΔE of 48.5 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Windmill Lane vs RAL 620-5 in Real Spaces
1 real room side by side. Seeing Windmill Lane and RAL 620-5 in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Windmill Lane returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Windmill Lane vs RAL 620-5 Simulated Comparison
5 simulated room previews — drag the slider on each to see Windmill Lane on one side and RAL 620-5 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.










































