S 4010-Y50R vs River Reed
S 4010-Y50R (NCS) and River Reed (Sherwin-Williams) come from different manufacturers. Both sit in the beige-greige family, which is useful context if you're narrowing within a single hue direction. The 5-point LRV gap — 30 for S 4010-Y50R vs 25 for River Reed — means S 4010-Y50R will open up a space more effectively. Both share a warm character, which means they'll respond to light and surrounding materials in similar ways. ΔE 8.4 means they're clearly different, but not dramatically so — they'd pair well in the same 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 4010-Y50R vs River Reed Simulated Comparison
5 simulated room previews — drag the slider on each to see S 4010-Y50R on one side and River Reed 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 4010-Y50R comparisons
See how S 4010-Y50R stacks up against other well-photographed colors across different brands and tones.








































