S 3005-B20G vs Uncertain Gray
S 3005-B20G (NCS) and Uncertain Gray (Sherwin-Williams) come from different manufacturers. S 3005-B20G reads as blue-grey, while Uncertain Gray reads as grey — two distinct hue families, not close cousins. The 3-point LRV gap — 43 for Uncertain Gray vs 40 for S 3005-B20G — means Uncertain Gray will open up a space more effectively. Both share a neutral character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 2.6 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. 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 3005-B20G vs Uncertain Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see S 3005-B20G on one side and Uncertain Gray 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 3005-B20G comparisons
See how S 3005-B20G stacks up against other well-photographed colors across different brands and tones.
