Mountain Air vs Thames Fog
Mountain Air (Benjamin Moore) and Thames Fog (Valspar) come from different manufacturers. Hue-wise, Mountain Air belongs to the greige-grey family and Thames Fog to the grey family. The 25-point LRV gap — 53 for Mountain Air vs 27 for Thames Fog — means Mountain Air will open up a space more effectively. A ΔE of 18.9 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
Mountain Air vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Air 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 Mountain Air comparisons
See how Mountain Air stacks up against other well-photographed colors across different brands and tones.
