S 5010-R90B vs Downing Slate
S 5010-R90B is a NCS color while Downing Slate comes from Sherwin-Williams. Both sit in the blue-grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 19 and 21, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — S 5010-R90B's cool character against Downing Slate's neutral — becomes most visible against white trim or in morning light. With a ΔE of 2.5, the difference is subtle — you'd need them side by side to reliably tell them apart. 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 Downing Slate Simulated Comparison
5 simulated room previews — drag the slider on each to see S 5010-R90B on one side and Downing Slate 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.
