Hudson Bay vs RAL 620-4
Hudson Bay is a Benjamin Moore color while RAL 620-4 comes from RAL Effect. These are both blues, so the question isn't which hue to choose — it's where within blue to land. With LRVs of 10 and 9, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 5.9, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Hudson Bay vs RAL 620-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Hudson Bay on one side and RAL 620-4 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 Hudson Bay comparisons
See how Hudson Bay stacks up against other well-photographed colors across different brands and tones.
