Blue Horizon vs Thames Fog
Where Blue Horizon belongs to Sherwin-Williams's range, Thames Fog is a Valspar color. Hue-wise, Blue Horizon belongs to the blue family and Thames Fog to the grey family. Blue Horizon (LRV 78) reflects noticeably more light than Thames Fog (LRV 27), a difference of 50 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 32.4, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Blue Horizon vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Horizon 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 Blue Horizon comparisons
See how Blue Horizon stacks up against other well-photographed colors across different brands and tones.
