Terrain vs Thames Fog
Where Terrain belongs to Sherwin-Williams's range, Thames Fog is a Valspar color. Hue-wise, Terrain belongs to the greige-grey family and Thames Fog to the grey family. Thames Fog (LRV 27) reflects noticeably more light than Terrain (LRV 23), a difference of 4 points that becomes especially apparent in rooms with limited natural light. The ΔE 5.4 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Terrain vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Terrain 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 Terrain comparisons
See how Terrain stacks up against other well-photographed colors across different brands and tones.
