RAL 650-1 vs Regale Blue
Where RAL 650-1 belongs to RAL Effect's range, Regale Blue is a Sherwin-Williams color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Regale Blue (LRV 42) reflects noticeably more light than RAL 650-1 (LRV 36), a difference of 7 points that becomes especially apparent in rooms with limited natural light. The ΔE 6.2 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. 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 650-1 vs Regale Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 650-1 on one side and Regale Blue 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 650-1 comparisons
See how RAL 650-1 stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 36, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 36), opening up a space where RAL 650-1 encloses it.
RAL 650-1 reads slightly lighter (LRV 36 vs 30), a gap that shows most in low-lit rooms.
Agreeable Gray reflects far more light (LRV 60 vs 36), opening up a space where RAL 650-1 encloses it.
At LRV 58 vs 36, Accessible Beige is decisively the brighter choice.
A 9-point LRV gap (36 vs 27) makes RAL 650-1 the marginally brighter of the two.
French Gray reads slightly lighter (LRV 43 vs 36), a gap that shows most in low-lit rooms.
At LRV 55 vs 36, Tranquil Dawn is decisively the brighter choice.
A 8-point LRV gap (44 vs 36) makes Hardwick White the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 36), opening up a space where RAL 650-1 encloses it.
At LRV 66 vs 36, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 36, Shoji White is decisively the brighter choice.
At LRV 36 vs 12, RAL 650-1 is decisively the brighter choice.
At LRV 68 vs 36, Skimming Stone is decisively the brighter choice.
At LRV 36 vs 12, RAL 650-1 is decisively the brighter choice.
A 10-point LRV gap (45 vs 36) makes Saybrook Sage the marginally brighter of the two.
RAL 650-1 reads slightly lighter (LRV 36 vs 31), a gap that shows most in low-lit rooms.
RAL 650-1 reflects far more light (LRV 36 vs 7), opening up a space where Pine Needle encloses it.
RAL 650-1 reads slightly lighter (LRV 36 vs 24), a gap that shows most in low-lit rooms.
Guilford Green reflects far more light (LRV 57 vs 36), opening up a space where RAL 650-1 encloses it.