Blue Diamond vs S 0515-R80B
Blue Diamond (Benjamin Moore) and S 0515-R80B (NCS) come from different manufacturers. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Their light reflectance values are nearly the same — 69 vs 71 — so neither will read significantly brighter or darker than the other. Where Blue Diamond leans blue, S 0515-R80B reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 14.1 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
Blue Diamond vs S 0515-R80B Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Diamond on one side and S 0515-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 Blue Diamond comparisons
See how Blue Diamond stacks up against other well-photographed colors across different brands and tones.
