Deep Fossil vs Slate Violet
Deep Fossil (Dulux) and Slate Violet (Sherwin-Williams) come from different manufacturers. Deep Fossil reads as grey, while Slate Violet reads as grey-purple — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 31 vs 29 — so neither will read significantly brighter or darker than the other. Both share a neutral character, which means they'll respond to light and surrounding materials in similar ways. ΔE 3.5 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Deep Fossil vs Slate Violet Simulated Comparison
5 simulated room previews — drag the slider on each to see Deep Fossil on one side and Slate Violet 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.
White Dove reflects far more light (LRV 83 vs 31), opening up a space where Deep Fossil encloses it.
At LRV 69 vs 31, Ammonite is decisively the brighter choice.
Deep Fossil reflects far more light (LRV 31 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 31, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 31 vs 30), so neither reads brighter in a room.
Mizzle reflects far more light (LRV 52 vs 31), opening up a space where Deep Fossil encloses it.
At LRV 60 vs 31, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 31), opening up a space where Deep Fossil encloses it.
Deep Fossil reads slightly lighter (LRV 31 vs 27), a gap that shows most in low-lit rooms.
At LRV 43 vs 31, French Gray is decisively the brighter choice.
At LRV 31 vs 4, Deep Fossil is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 31), opening up a space where Deep Fossil encloses it.
Deep Fossil reflects far more light (LRV 31 vs 13), opening up a space where Bancha encloses it.
Hardwick White reflects far more light (LRV 44 vs 31), opening up a space where Deep Fossil encloses it.
At LRV 84 vs 31, Pure White is decisively the brighter choice.
A 10-point LRV gap (31 vs 21) makes Deep Fossil the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 31), opening up a space where Deep Fossil encloses it.
Shoji White reflects far more light (LRV 74 vs 31), opening up a space where Deep Fossil encloses it.
Snowbound reflects far more light (LRV 83 vs 31), opening up a space where Deep Fossil encloses it.
Deep Fossil reflects far more light (LRV 31 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 31), opening up a space where Deep Fossil encloses it.
A 10-point LRV gap (41 vs 31) makes Dix Blue the marginally brighter of the two.
At LRV 68 vs 31, Calamine is decisively the brighter choice.
A 6-point LRV gap (31 vs 25) makes Deep Fossil the marginally brighter of the two.
Deep Fossil reflects far more light (LRV 31 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 31), opening up a space where Deep Fossil encloses it.
Their light reflectance is nearly identical (LRV 31 vs 31), so neither reads brighter in a room.
At LRV 31 vs 7, Deep Fossil is decisively the brighter choice.
A 7-point LRV gap (31 vs 24) makes Deep Fossil the marginally brighter of the two.
At LRV 57 vs 31, Guilford Green is decisively the brighter choice.