Mountain Air vs Sleepy Blue
Both from Sherwin-Williams's palette. Hue-wise, Mountain Air belongs to the blue-grey family and Sleepy Blue to the blue family. Mountain Air (LRV 73) reflects noticeably more light than Sleepy Blue (LRV 58), a difference of 15 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 8.5 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.
Color Details
Mountain Air vs Sleepy Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Air on one side and Sleepy Blue on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Mountain Air comparisons
See how Mountain Air stacks up against other well-photographed colors across different brands and tones.
