Millstone Gray vs Thames Fog
Millstone Gray is a Benjamin Moore color while Thames Fog comes from Valspar. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. At LRV 27 vs 17, Thames Fog will read as the brighter of the two — a 10-point gap that matters most in north-facing or low-light rooms. At ΔE 13.3, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Millstone Gray vs Thames Fog in Real Spaces
3 real rooms side by side. Seeing Millstone Gray 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.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Thames Fog returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Thames Fog will make the room feel meaningfully brighter than Millstone Gray would.
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 Millstone Gray would.
Color Details
Millstone Gray vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Millstone Gray 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 Millstone Gray comparisons
See how Millstone Gray stacks up against other well-photographed colors across different brands and tones.
