Deep Fossil vs Treron
Deep Fossil (Dulux) and Treron (Farrow & Ball) come from different manufacturers. Hue-wise, Deep Fossil belongs to the grey family and Treron to the greige-grey family. The 6-point LRV gap — 31 for Deep Fossil vs 25 for Treron — means Deep Fossil will open up a space more effectively. Where Deep Fossil leans neutral, Treron reads warm — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 10.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Deep Fossil vs Treron in Real Spaces
4 real rooms side by side. Seeing Deep Fossil 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.
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. Deep Fossil reads slightly lighter here — a subtle but real difference in how open the space feels.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Deep Fossil has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The brightness difference is modest but present — Deep Fossil gives the walls a little more lift.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Deep Fossil has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Deep Fossil vs Treron Simulated Comparison
5 simulated room previews — drag the slider on each to see Deep Fossil 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 Deep Fossil comparisons
See how Deep Fossil stacks up against other well-photographed colors across different brands and tones.
