Open Seas vs Thames Fog
Where Open Seas belongs to Sherwin-Williams's range, Thames Fog is a Valspar color. Open Seas reads as blue, while Thames Fog reads as grey — two distinct hue families, not close cousins. Open Seas (LRV 39) reflects noticeably more light than Thames Fog (LRV 27), a difference of 12 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 22.7, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Open Seas vs Thames Fog in Real Spaces
1 real room side by side. Seeing Open Seas and Thames Fog in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Open Seas reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Color Details
Open Seas vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Open Seas 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 Open Seas comparisons
See how Open Seas stacks up against other well-photographed colors across different brands and tones.
