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.
White Dove reflects far more light (LRV 83 vs 70), opening up a space where Blue Silk encloses it.
At LRV 70 vs 52, Blue Silk is decisively the brighter choice.
At LRV 70 vs 30, Blue Silk is decisively the brighter choice.
A 10-point LRV gap (70 vs 60) makes Blue Silk the marginally brighter of the two.
Blue Silk reflects far more light (LRV 70 vs 58), opening up a space where Accessible Beige encloses it.
Blue Silk reflects far more light (LRV 70 vs 27), opening up a space where Denim Drift encloses it.
At LRV 70 vs 43, Blue Silk is decisively the brighter choice.
Blue Silk reflects far more light (LRV 70 vs 55), opening up a space where Tranquil Dawn encloses it.
Blue Silk reflects far more light (LRV 70 vs 44), opening up a space where Hardwick White encloses it.
At LRV 84 vs 70, Pure White is decisively the brighter choice.
Blue Silk reads slightly lighter (LRV 70 vs 66), a gap that shows most in low-lit rooms.
Shoji White reads slightly lighter (LRV 74 vs 70), a gap that shows most in low-lit rooms.
Blue Silk reflects far more light (LRV 70 vs 12), opening up a space where Pewter Green encloses it.
Blue Silk reflects far more light (LRV 70 vs 8), opening up a space where Duck Green encloses it.
With LRVs of 70 and 68, the two reflect almost the same amount of light.
Blue Silk reflects far more light (LRV 70 vs 12), opening up a space where Vintage Vogue encloses it.
Blue Silk reflects far more light (LRV 70 vs 45), opening up a space where Saybrook Sage encloses it.
At LRV 70 vs 31, Blue Silk is decisively the brighter choice.