Prussian Blue vs RAL 620-3
Prussian Blue is a PPG color while RAL 620-3 comes from RAL Effect. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. With LRVs of 19 and 20, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 2.4, the difference is subtle — you'd need them side by side to reliably tell them apart. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Prussian Blue vs RAL 620-3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Prussian Blue on one side and RAL 620-3 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 Prussian Blue comparisons
See how Prussian Blue stacks up against other well-photographed colors across different brands and tones.
