RAL 690-4 vs L366
RAL 690-4 is a RAL Effect color while L366 comes from Tikkurila. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. At LRV 15 vs 8, L366 will read as the brighter of the two — a 8-point gap that matters most in north-facing or low-light rooms. At ΔE 12.5, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. 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 690-4 vs L366 Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 690-4 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 690-4 comparisons
See how RAL 690-4 stacks up against other well-photographed colors across different brands and tones.
