S 5010-R90B vs Foggy Day
Where S 5010-R90B belongs to NCS's range, Foggy Day is a Sherwin-Williams color. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. They have nearly identical light reflectance values (19 vs 20), so they'll read as similarly Dark in most lighting conditions. S 5010-R90B runs cool while Foggy Day is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 4.1 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
S 5010-R90B vs Foggy Day Simulated Comparison
5 simulated room previews — drag the slider on each to see S 5010-R90B on one side and Foggy Day 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 S 5010-R90B comparisons
See how S 5010-R90B stacks up against other well-photographed colors across different brands and tones.
