Mountain Air vs Tempe Star
Mountain Air and Tempe Star come from the same Sherwin-Williams collection. Hue-wise, Mountain Air belongs to the blue-grey family and Tempe Star to the blue family. The 62-point LRV gap — 73 for Mountain Air vs 11 for Tempe Star — means Mountain Air will open up a space more effectively. Both share a cool character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 49.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Mountain Air vs Tempe Star in Real Spaces
1 real room side by side. Seeing Mountain Air and Tempe Star in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The LRV gap is large enough that Mountain Air will make the room feel meaningfully brighter than Tempe Star would.
Color Details
Mountain Air vs Tempe Star Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Air on one side and Tempe Star 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.