Vast Sky vs Thames Fog
Where Vast Sky belongs to Sherwin-Williams's range, Thames Fog is a Valspar color. Vast Sky reads as blue, while Thames Fog reads as grey — two distinct hue families, not close cousins. Vast Sky (LRV 55) reflects noticeably more light than Thames Fog (LRV 27), a difference of 28 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 27.0, 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.
Vast Sky vs Thames Fog in Real Spaces
1 real room side by side. Seeing Vast Sky 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 Vast Sky will make the room feel meaningfully brighter than Thames Fog would.
Color Details
Vast Sky vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Vast Sky 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 Vast Sky comparisons
See how Vast Sky stacks up against other well-photographed colors across different brands and tones.
