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.
At LRV 83 vs 19, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 19), opening up a space where RAL 720-5 encloses it.
Evergreen Fog reads slightly lighter (LRV 30 vs 19), a gap that shows most in low-lit rooms.
Agreeable Gray reflects far more light (LRV 60 vs 19), opening up a space where RAL 720-5 encloses it.
At LRV 58 vs 19, Accessible Beige is decisively the brighter choice.
A 8-point LRV gap (27 vs 19) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 19), opening up a space where RAL 720-5 encloses it.
At LRV 55 vs 19, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 19, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 19), opening up a space where RAL 720-5 encloses it.
At LRV 66 vs 19, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 19, Shoji White is decisively the brighter choice.
A 7-point LRV gap (19 vs 12) makes RAL 720-5 the marginally brighter of the two.
A 11-point LRV gap (19 vs 8) makes RAL 720-5 the marginally brighter of the two.
At LRV 68 vs 19, Skimming Stone is decisively the brighter choice.
A 7-point LRV gap (19 vs 12) makes RAL 720-5 the marginally brighter of the two.
At LRV 45 vs 19, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 19), opening up a space where RAL 720-5 encloses it.