Blue Silk vs RAL 170-4
Blue Silk is a PPG color while RAL 170-4 comes from RAL Effect. These are both blues, so the question isn't which hue to choose — it's where within blue to land. With LRVs of 70 and 69, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 2.6, the difference is subtle — you'd need them side by side to reliably tell them apart. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Blue Silk vs RAL 170-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Silk on one side and RAL 170-4 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 Blue Silk comparisons
See how Blue Silk stacks up against other well-photographed colors across different brands and tones.
