Cosmic Blue vs S 3005-B20G
Cosmic Blue (Behr) and S 3005-B20G (NCS) come from different manufacturers. Hue-wise, Cosmic Blue belongs to the blue family and S 3005-B20G to the blue-grey family. The 7-point LRV gap — 47 for Cosmic Blue vs 40 for S 3005-B20G — means Cosmic Blue will open up a space more effectively. Where Cosmic Blue leans blue, S 3005-B20G reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 14.0 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
Cosmic Blue vs S 3005-B20G Simulated Comparison
5 simulated room previews — drag the slider on each to see Cosmic Blue on one side and S 3005-B20G 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 Cosmic Blue comparisons
See how Cosmic Blue stacks up against other well-photographed colors across different brands and tones.








































