Green Onyx vs Mythical
Green Onyx and Mythical come from the same Sherwin-Williams collection. Green Onyx reads as green-greige, while Mythical reads as blue-grey — two distinct hue families, not close cousins. The 12-point LRV gap — 31 for Green Onyx vs 20 for Mythical — means Green Onyx will open up a space more effectively. Where Green Onyx leans neutral, Mythical reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 29.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Green Onyx vs Mythical Simulated Comparison
5 simulated room previews — drag the slider on each to see Green Onyx on one side and Mythical 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 Green Onyx comparisons
See how Green Onyx stacks up against other well-photographed colors across different brands and tones.








































