Dark Royal Blue vs RAL 640-M
Dark Royal Blue (Benjamin Moore) and RAL 640-M (RAL Effect) come from different manufacturers. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. The 4-point LRV gap — 9 for Dark Royal Blue vs 5 for RAL 640-M — means Dark Royal Blue will open up a space more effectively. ΔE 3.1 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
Dark Royal Blue vs RAL 640-M Simulated Comparison
5 simulated room previews — drag the slider on each to see Dark Royal Blue on one side and RAL 640-M 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 Dark Royal Blue comparisons
See how Dark Royal Blue stacks up against other well-photographed colors across different brands and tones.
