Mountain Pass vs Rocky River
Both are Sherwin-Williams colors. Mountain Pass reads as blue-grey, while Rocky River reads as blue-green — two distinct hue families, not close cousins. With LRVs of 14 and 15, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Mountain Pass's neutral character against Rocky River's cool — becomes most visible against white trim or in morning light. At ΔE 4.4, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Mountain Pass vs Rocky River in Real Spaces
1 real room side by side. Mountain Pass and Rocky River are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Mountain Pass reads more restrained here, while Rocky River adds a sense of enclosure and warmth.
Color Details
Mountain Pass vs Rocky River Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Pass on one side and Rocky River 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 Pass comparisons
See how Mountain Pass stacks up against other well-photographed colors across different brands and tones.
