Plum Brown vs Thames Fog
Where Plum Brown belongs to Sherwin-Williams's range, Thames Fog is a Valspar color. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. Thames Fog (LRV 27) reflects noticeably more light than Plum Brown (LRV 6), a difference of 21 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 32.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Plum Brown vs Thames Fog in Real Spaces
1 real room side by side. Seeing Plum Brown and Thames Fog in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Thames Fog will make the room feel meaningfully brighter than Plum Brown would.
Color Details
Plum Brown vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Plum Brown 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 Plum Brown comparisons
See how Plum Brown stacks up against other well-photographed colors across different brands and tones.










































