RAL 660-5 vs Surfin'
Where RAL 660-5 belongs to RAL Effect's range, Surfin' 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. Surfin' (LRV 46) reflects noticeably more light than RAL 660-5 (LRV 41), a difference of 5 points that becomes especially apparent in rooms with limited natural light. At ΔE 2.7, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
RAL 660-5 vs Surfin' in Real Spaces
1 real room side by side. RAL 660-5 and Surfin' are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Color Details
RAL 660-5 vs Surfin' Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 660-5 on one side and Surfin' 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 660-5 comparisons
See how RAL 660-5 stacks up against other well-photographed colors across different brands and tones.
