S 4010-G50Y vs Mountain Road
Where S 4010-G50Y belongs to NCS's range, Mountain Road is a Sherwin-Williams color. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. S 4010-G50Y (LRV 29) reflects noticeably more light than Mountain Road (LRV 23), a difference of 6 points that becomes especially apparent in rooms with limited natural light. S 4010-G50Y runs warm while Mountain Road is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 6.7 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. 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-G50Y vs Mountain Road Simulated Comparison
5 simulated room previews — drag the slider on each to see S 4010-G50Y on one side and Mountain Road 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-G50Y comparisons
See how S 4010-G50Y stacks up against other well-photographed colors across different brands and tones.
