City Fog vs Treron
Where City Fog belongs to Dulux's range, Treron is a Farrow & Ball color. City Fog reads as grey, while Treron reads as greige-grey — two distinct hue families, not close cousins. Treron (LRV 25) reflects noticeably more light than City Fog (LRV 15), a difference of 10 points that becomes especially apparent in rooms with limited natural light. City Fog runs neutral while Treron is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 15.9, 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.
City Fog vs Treron in Real Spaces
1 real room side by side. Seeing City Fog and Treron in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Color Details
City Fog vs Treron Simulated Comparison
5 simulated room previews — drag the slider on each to see City Fog on one side and Treron 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 City Fog comparisons
See how City Fog stacks up against other well-photographed colors across different brands and tones.









































