Slippery Shale vs Black grey
Slippery Shale is a Behr color while Black grey comes from RAL Classic. Hue-wise, Slippery Shale belongs to the grey family and Black grey to the blue-grey family. At LRV 18 vs 6, Slippery Shale will read as the brighter of the two — a 12-point gap that matters most in north-facing or low-light rooms. At ΔE 30.3, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Slippery Shale vs Black grey in Real Spaces
2 real rooms side by side. Seeing Slippery Shale and Black grey in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Slippery Shale will make the room feel meaningfully brighter than Black grey would.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Slippery Shale will make the room feel meaningfully brighter than Black grey would.
Color Details
Slippery Shale vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Slippery Shale on one side and Black grey 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.
