Deep Fossil vs S 4500-N
Deep Fossil (Dulux) and S 4500-N (NCS) come from different manufacturers. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. The 4-point LRV gap — 31 for Deep Fossil vs 27 for S 4500-N — means Deep Fossil will open up a space more effectively. Both share a neutral character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 1.1 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.
Deep Fossil vs S 4500-N in Real Spaces
1 real room side by side. Deep Fossil and S 4500-N 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
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 S 4500-N Simulated Comparison
5 simulated room previews — drag the slider on each to see Deep Fossil on one side and S 4500-N 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.
