Mountain Air vs River Rouge
Both are Sherwin-Williams colors. Mountain Air reads as blue-grey, while River Rouge reads as grey — two distinct hue families, not close cousins. At LRV 73 vs 12, Mountain Air will read as the brighter of the two — a 61-point gap that matters most in north-facing or low-light rooms. The tonal difference — Mountain Air's cool character against River Rouge's warm — becomes most visible against white trim or in morning light. At ΔE 50.2, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. 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 River Rouge Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Air on one side and River Rouge 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.
