S 4010-G50Y vs Green Onyx
S 4010-G50Y is a NCS color while Green Onyx comes from Sherwin-Williams. Hue-wise, S 4010-G50Y belongs to the grey family and Green Onyx to the green-greige family. With LRVs of 29 and 31, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — S 4010-G50Y's warm character against Green Onyx's neutral — becomes most visible against white trim or in morning light. At ΔE 3.3, 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
S 4010-G50Y vs Green Onyx Simulated Comparison
5 simulated room previews — drag the slider on each to see S 4010-G50Y on one side and Green Onyx 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.








































