Yellow grey vs Green Onyx
Where Yellow grey belongs to RAL Classic's range, Green Onyx is a Sherwin-Williams color. Hue-wise, Yellow grey belongs to the greige-grey family and Green Onyx to the green-greige family. Green Onyx (LRV 31) reflects noticeably more light than Yellow grey (LRV 27), a difference of 4 points that becomes especially apparent in rooms with limited natural light. The ΔE 7.8 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Yellow grey vs Green Onyx in Real Spaces
1 real room side by side. Yellow grey and Green Onyx are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Green Onyx gives the walls a little more lift.
Color Details
Yellow grey vs Green Onyx Simulated Comparison
5 simulated room previews — drag the slider on each to see Yellow grey 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 Yellow grey comparisons
See how Yellow grey stacks up against other well-photographed colors across different brands and tones.
