Alchemy vs Thames Fog
Where Alchemy belongs to Sherwin-Williams's range, Thames Fog is a Valspar color. Hue-wise, Alchemy belongs to the beige family and Thames Fog to the grey family. Alchemy (LRV 38) reflects noticeably more light than Thames Fog (LRV 27), a difference of 10 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 39.7, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Alchemy vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Alchemy 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 Alchemy comparisons
See how Alchemy stacks up against other well-photographed colors across different brands and tones.
