Deep Secret® vs RAL 810-5
Where Deep Secret® belongs to Benjamin Moore's range, RAL 810-5 is a RAL Effect color. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. They have nearly identical light reflectance values (12 vs 10), so they'll read as similarly Dark in most lighting conditions. At ΔE 1.3, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished 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
Deep Secret® vs RAL 810-5 Simulated Comparison
5 simulated room previews — drag the slider on each to see Deep Secret® on one side and RAL 810-5 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 Deep Secret® comparisons
See how Deep Secret® stacks up against other well-photographed colors across different brands and tones.








































