Cathedral Gray vs Slippery Shale
Both are Behr colors. These are both greys, so the question isn't which hue to choose — it's where within grey to land. At LRV 40 vs 18, Cathedral Gray will read as the brighter of the two — a 22-point gap that matters most in north-facing or low-light rooms. They share a red quality — useful to know if you're layering them in the same space. At ΔE 20.4, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Cathedral Gray vs Slippery Shale in Real Spaces
1 real room side by side. Seeing Cathedral Gray and Slippery Shale in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The LRV gap is large enough that Cathedral Gray will make the room feel meaningfully brighter than Slippery Shale would.
Color Details
Cathedral Gray vs Slippery Shale Simulated Comparison
5 simulated room previews — drag the slider on each to see Cathedral Gray on one side and Slippery Shale 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.