Cumulus Cotton vs Harbor Fog
Cumulus Cotton and Harbor Fog come from the same Benjamin Moore collection. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Their light reflectance values are nearly the same — 77 vs 75 — so neither will read significantly brighter or darker than the other. Both share a blue character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 1.6 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Cumulus Cotton vs Harbor Fog in Real Spaces
1 real room side by side. Cumulus Cotton and Harbor Fog 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.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
Cumulus Cotton vs Harbor Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Cumulus Cotton on one side and Harbor 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 Cumulus Cotton comparisons
See how Cumulus Cotton stacks up against other well-photographed colors across different brands and tones.
