Metallic Silver vs Thundercloud Gray

Both from Benjamin Moore's palette. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. Metallic Silver (LRV 57) reflects noticeably more light than Thundercloud Gray (LRV 50), a difference of 7 points that becomes especially apparent in rooms with limited natural light. Both lean blue, so they'll behave similarly in mixed or changing light conditions. The ΔE 4.4 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.