Cool Ashes vs Iron Mountain

Cool Ashes and Iron Mountain come from the same Behr collection. These are both greys, so the question isn't which hue to choose — it's where within grey to land. The 11-point LRV gap — 29 for Cool Ashes vs 18 for Iron Mountain — means Cool Ashes will open up a space more effectively. Both share a yellow character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 11.3 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.