London Fog vs Alpaca
Where London Fog belongs to Benjamin Moore's range, Alpaca is a Sherwin-Williams color. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. They have nearly identical light reflectance values (56 vs 57), so they'll read as similarly Medium in most lighting conditions. London Fog runs red while Alpaca is decidedly warm, which means they'll respond very differently to warm vs cool light sources. At ΔE 1.4, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
London Fog vs Alpaca in Real Spaces
1 real room side by side. London Fog and Alpaca are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
London Fog vs Alpaca Simulated Comparison
5 simulated room previews — drag the slider on each to see London Fog on one side and Alpaca 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 London Fog comparisons
See how London Fog stacks up against other well-photographed colors across different brands and tones.
