Explorer Blue vs RAL 660-3
Explorer Blue (Behr) and RAL 660-3 (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. Their light reflectance values are nearly the same — 27 vs 27 — so neither will read significantly brighter or darker than the other. A ΔE of 2.3 puts them in subtle territory — distinguishable in direct comparison, less so from across a 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
Explorer Blue vs RAL 660-3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Explorer Blue on one side and RAL 660-3 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 Explorer Blue comparisons
See how Explorer Blue stacks up against other well-photographed colors across different brands and tones.
