Mineral vs Uncertain Gray

Both from Sherwin-Williams's palette. These are both greys, so the question isn't which hue to choose — it's where within grey to land. Mineral (LRV 46) reflects noticeably more light than Uncertain Gray (LRV 43), a difference of 4 points that becomes especially apparent in rooms with limited natural light. Both lean neutral, so they'll behave similarly in mixed or changing light conditions. At ΔE 2.6, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.