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.