Cape Blue vs Agate Grey
Cape Blue (Benjamin Moore) and Agate Grey (RAL Classic) come from different manufacturers. Cape Blue reads as blue, while Agate Grey reads as green-grey — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 47 vs 45 — so neither will read significantly brighter or darker than the other. A ΔE of 10.5 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
Cape Blue vs Agate Grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Cape Blue on one side and Agate Grey 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 Cape Blue comparisons
See how Cape Blue stacks up against other well-photographed colors across different brands and tones.








































