Royal Regatta 6 vs RAL 670-3
Where Royal Regatta 6 belongs to Dulux's range, RAL 670-3 is a RAL Effect color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Royal Regatta 6 (LRV 50) reflects noticeably more light than RAL 670-3 (LRV 47), a difference of 3 points that becomes especially apparent in rooms with limited natural light. The ΔE 7.4 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
Royal Regatta 6 vs RAL 670-3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Royal Regatta 6 on one side and RAL 670-3 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 Royal Regatta 6 comparisons
See how Royal Regatta 6 stacks up against other well-photographed colors across different brands and tones.
