RAL 730-6 vs L366
RAL 730-6 (RAL Effect) and L366 (Tikkurila) come from different manufacturers. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Their light reflectance values are nearly the same — 17 vs 15 — so neither will read significantly brighter or darker than the other. A ΔE of 10.5 puts these firmly in different territory — two distinct design choices rather than close alternatives. 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 730-6 vs L366 Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 730-6 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 730-6 comparisons
See how RAL 730-6 stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 17, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 17), opening up a space where RAL 730-6 encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 17), opening up a space where RAL 730-6 encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 17), opening up a space where RAL 730-6 encloses it.
At LRV 58 vs 17, Accessible Beige is decisively the brighter choice.
A 10-point LRV gap (27 vs 17) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 17), opening up a space where RAL 730-6 encloses it.
At LRV 55 vs 17, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 17, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 17), opening up a space where RAL 730-6 encloses it.
At LRV 66 vs 17, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 17, Shoji White is decisively the brighter choice.
A 5-point LRV gap (17 vs 12) makes RAL 730-6 the marginally brighter of the two.
A 9-point LRV gap (17 vs 8) makes RAL 730-6 the marginally brighter of the two.
At LRV 68 vs 17, Skimming Stone is decisively the brighter choice.
A 5-point LRV gap (17 vs 12) makes RAL 730-6 the marginally brighter of the two.
At LRV 45 vs 17, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 17), opening up a space where RAL 730-6 encloses it.