Flagstone vs S 4010-Y50R
Flagstone (Benjamin Moore) and S 4010-Y50R (NCS) come from different manufacturers. Flagstone reads as greige-grey, while S 4010-Y50R reads as beige-greige — two distinct hue families, not close cousins. The 5-point LRV gap — 30 for S 4010-Y50R vs 25 for Flagstone — 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 6.4 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
Flagstone vs S 4010-Y50R Simulated Comparison
5 simulated room previews — drag the slider on each to see Flagstone on one side and S 4010-Y50R 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 Flagstone comparisons
See how Flagstone stacks up against other well-photographed colors across different brands and tones.








































