Half Sea Fog vs S 3005-B20G
Half Sea Fog is a Behr color while S 3005-B20G comes from NCS. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. At LRV 46 vs 40, Half Sea Fog will read as the brighter of the two — a 6-point gap that matters most in north-facing or low-light rooms. The tonal difference — Half Sea Fog's blue character against S 3005-B20G's neutral — becomes most visible against white trim or in morning light. At ΔE 4.8, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Half Sea Fog vs S 3005-B20G Simulated Comparison
5 simulated room previews — drag the slider on each to see Half Sea Fog on one side and S 3005-B20G 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 Half Sea Fog comparisons
See how Half Sea Fog stacks up against other well-photographed colors across different brands and tones.
