RAL 150-4 vs Conch Shell
Where RAL 150-4 belongs to RAL Effect's range, Conch Shell is a Sherwin-Williams color. These are both beiges, so the question isn't which hue to choose — it's where within beige to land. They have nearly identical light reflectance values (81 vs 81), so they'll read as similarly Light in most lighting conditions. At ΔE 2.4, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. 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 150-4 vs Conch Shell Simulated Comparison
5 simulated room previews — drag the slider on each to see RAL 150-4 on one side and Conch Shell 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 150-4 comparisons
See how RAL 150-4 stacks up against other well-photographed colors across different brands and tones.
