Opal Silk vs Agate Grey
Opal Silk (Behr) and Agate Grey (RAL Classic) come from different manufacturers. Hue-wise, Opal Silk belongs to the blue-green family and Agate Grey to the green-grey family. Their light reflectance values are nearly the same — 43 vs 45 — so neither will read significantly brighter or darker than the other. ΔE 8.7 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Opal Silk vs Agate Grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Opal Silk 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 Opal Silk comparisons
See how Opal Silk stacks up against other well-photographed colors across different brands and tones.
