RAL 420-3 vs Copper Harbor
RAL 420-3 (RAL Effect) and Copper Harbor (Sherwin-Williams) come from different manufacturers. RAL 420-3 reads as pink-red, while Copper Harbor reads as beige — two distinct hue families, not close cousins. The 7-point LRV gap — 37 for RAL 420-3 vs 30 for Copper Harbor — means RAL 420-3 will open up a space more effectively. ΔE 9.3 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
RAL 420-3 vs Copper Harbor Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 420-3 on one side and Copper Harbor 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 RAL 420-3 comparisons
See how RAL 420-3 stacks up against other well-photographed colors across different brands and tones.
