Poseidon vs Thames Fog
Poseidon (Benjamin Moore) and Thames Fog (Valspar) come from different manufacturers. Hue-wise, Poseidon belongs to the blue family and Thames Fog to the grey family. The 4-point LRV gap — 31 for Poseidon vs 27 for Thames Fog — means Poseidon will open up a space more effectively. A ΔE of 36.7 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
Poseidon vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Poseidon 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 Poseidon comparisons
See how Poseidon stacks up against other well-photographed colors across different brands and tones.
