Mountain Air vs Whimsical White

Both from Sherwin-Williams's palette. Hue-wise, Mountain Air belongs to the blue-grey family and Whimsical White to the white family. Whimsical White (LRV 79) reflects noticeably more light than Mountain Air (LRV 73), a difference of 6 points that becomes especially apparent in rooms with limited natural light. Both lean cool, so they'll behave similarly in mixed or changing light conditions. The ΔE 5.6 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.