Slate Blue vs S 3005-B20G
Slate Blue is a Benjamin Moore color while S 3005-B20G comes from NCS. Hue-wise, Slate Blue belongs to the blue family and S 3005-B20G to the blue-grey family. At LRV 43 vs 40, Slate Blue will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. The tonal difference — Slate Blue's blue character against S 3005-B20G's neutral — becomes most visible against white trim or in morning light. At ΔE 5.9, 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
Slate Blue vs S 3005-B20G Simulated Comparison
5 simulated room previews — drag the slider on each to see Slate Blue 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 Slate Blue comparisons
See how Slate Blue stacks up against other well-photographed colors across different brands and tones.








































