Slippery Shale vs Thames Fog
Slippery Shale is a Behr color while Thames Fog comes from Valspar. These are both greys, so the question isn't which hue to choose — it's where within grey to land. At LRV 27 vs 18, Thames Fog will read as the brighter of the two — a 9-point gap that matters most in north-facing or low-light rooms. At ΔE 10.1, 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.
Slippery Shale vs Thames Fog in Real Spaces
1 real room side by side. Seeing Slippery Shale and Thames Fog 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 Thames Fog will make the room feel meaningfully brighter than Slippery Shale would.
Color Details
Slippery Shale vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Slippery Shale on one side and Thames Fog 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.










































