Great Falls vs Thames Fog
Great Falls is a Sherwin-Williams color while Thames Fog comes from Valspar. Hue-wise, Great Falls belongs to the blue family and Thames Fog to the grey family. At LRV 27 vs 15, Thames Fog will read as the brighter of the two — a 12-point gap that matters most in north-facing or low-light rooms. At ΔE 31.2, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Great Falls vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Great Falls 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 Great Falls comparisons
See how Great Falls stacks up against other well-photographed colors across different brands and tones.








































