RAL 670-3 vs Porch Ceiling
Where RAL 670-3 belongs to RAL Effect's range, Porch Ceiling is a Sherwin-Williams color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. Porch Ceiling (LRV 53) reflects noticeably more light than RAL 670-3 (LRV 47), a difference of 6 points that becomes especially apparent in rooms with limited natural light. The ΔE 4.4 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
RAL 670-3 vs Porch Ceiling Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 670-3 on one side and Porch Ceiling 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 670-3 comparisons
See how RAL 670-3 stacks up against other well-photographed colors across different brands and tones.
