Rocky Mountain Sky vs S 3010-R80B
Rocky Mountain Sky (Benjamin Moore) and S 3010-R80B (NCS) come from different manufacturers. Rocky Mountain Sky reads as blue, while S 3010-R80B reads as blue-grey — two distinct hue families, not close cousins. The 5-point LRV gap — 36 for S 3010-R80B vs 31 for Rocky Mountain Sky — means S 3010-R80B will open up a space more effectively. Where Rocky Mountain Sky leans blue, S 3010-R80B reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 36.4 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
Rocky Mountain Sky vs S 3010-R80B Simulated Comparison
5 simulated room previews — drag the slider on each to see Rocky Mountain Sky on one side and S 3010-R80B 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 Rocky Mountain Sky comparisons
See how Rocky Mountain Sky stacks up against other well-photographed colors across different brands and tones.








































