Harbor Side Blue vs RAL 720-4
Harbor Side Blue (Benjamin Moore) and RAL 720-4 (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 5-point LRV gap — 40 for Harbor Side Blue vs 35 for RAL 720-4 — means Harbor Side Blue will open up a space more effectively. ΔE 4.2 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
Harbor Side Blue vs RAL 720-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Harbor Side Blue on one side and RAL 720-4 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 Harbor Side Blue comparisons
See how Harbor Side Blue stacks up against other well-photographed colors across different brands and tones.
