Slippery Shale vs Passageway
Slippery Shale (Behr) and Passageway (Valspar) come from different manufacturers. Hue-wise, Slippery Shale belongs to the grey family and Passageway to the blue-grey family. The 4-point LRV gap — 18 for Slippery Shale vs 14 for Passageway — means Slippery Shale will open up a space more effectively. A ΔE of 16.2 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Slippery Shale vs Passageway Simulated Comparison
5 simulated room previews — drag the slider on each to see Slippery Shale on one side and Passageway 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 Slippery Shale comparisons
See how Slippery Shale stacks up against other well-photographed colors across different brands and tones.








































