Natural Slate vs Thames Fog
Where Natural Slate belongs to Dulux's range, Thames Fog is a Valspar color. These are both greys, so the question isn't which hue to choose — it's where within grey to land. Natural Slate (LRV 31) reflects noticeably more light than Thames Fog (LRV 27), a difference of 4 points that becomes especially apparent in rooms with limited natural light. The ΔE 9.7 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Natural Slate vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Natural Slate on one side and Thames 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 Natural Slate comparisons
See how Natural Slate stacks up against other well-photographed colors across different brands and tones.
