Blue Grotto vs S 5040-R60B
Blue Grotto is a Benjamin Moore color while S 5040-R60B comes from NCS. Blue Grotto reads as blue, while S 5040-R60B reads as purple — two distinct hue families, not close cousins. With LRVs of 6 and 4, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Blue Grotto's blue character against S 5040-R60B's cool — becomes most visible against white trim or in morning light. At ΔE 14.8, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Blue Grotto vs S 5040-R60B Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Grotto on one side and S 5040-R60B 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 Blue Grotto comparisons
See how Blue Grotto stacks up against other well-photographed colors across different brands and tones.








































