Auger Shell vs Mountain Air
Auger Shell and Mountain Air come from the same Sherwin-Williams collection. Hue-wise, Auger Shell belongs to the grey family and Mountain Air to the blue-grey family. The 43-point LRV gap — 73 for Mountain Air vs 30 for Auger Shell — means Mountain Air will open up a space more effectively. Where Auger Shell leans neutral, Mountain Air reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 28.1 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.
Auger Shell vs Mountain Air in Real Spaces
1 real room side by side. Seeing Auger Shell and Mountain Air 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 Auger Shell would.
Color Details
Auger Shell vs Mountain Air Simulated Comparison
5 simulated room previews — drag the slider on each to see Auger Shell on one side and Mountain Air 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.