Great Graphite vs Thames Fog
Where Great Graphite belongs to Behr's range, Thames Fog is a Valspar color. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. Great Graphite (LRV 38) reflects noticeably more light than Thames Fog (LRV 27), a difference of 10 points that becomes especially apparent in rooms with limited natural light. The ΔE 10.0 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Great Graphite vs Thames Fog in Real Spaces
1 real room side by side. Great Graphite and Thames Fog 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
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Great Graphite reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Color Details
Great Graphite vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Great Graphite 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 Great Graphite comparisons
See how Great Graphite stacks up against other well-photographed colors across different brands and tones.
