RAL 660-6 vs Gentle Aquamarine
RAL 660-6 (RAL Effect) and Gentle Aquamarine (Sherwin-Williams) come from different manufacturers. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. The 7-point LRV gap — 54 for Gentle Aquamarine vs 47 for RAL 660-6 — means Gentle Aquamarine will open up a space more effectively. ΔE 4.3 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
RAL 660-6 vs Gentle Aquamarine Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 660-6 on one side and Gentle Aquamarine 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 RAL 660-6 comparisons
See how RAL 660-6 stacks up against other well-photographed colors across different brands and tones.








































