RAL 720-5 vs L366
RAL 720-5 is a RAL Effect color while L366 comes from Tikkurila. These are both blues, so the question isn't which hue to choose — it's where within blue to land. At LRV 19 vs 15, RAL 720-5 will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. At ΔE 4.7, 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
RAL 720-5 vs L366 Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 720-5 on one side and L366 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 720-5 comparisons
See how RAL 720-5 stacks up against other well-photographed colors across different brands and tones.
