Cascade Mountains vs Harbor Side Blue
Both from Benjamin Moore's palette. Cascade Mountains reads as yellow, while Harbor Side Blue reads as blue — two distinct hue families, not close cousins. Cascade Mountains (LRV 77) reflects noticeably more light than Harbor Side Blue (LRV 40), a difference of 36 points that becomes especially apparent in rooms with limited natural light. Cascade Mountains runs yellow while Harbor Side Blue is decidedly blue, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 35.7, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Cascade Mountains vs Harbor Side Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Cascade Mountains on one side and Harbor Side 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 Cascade Mountains comparisons
See how Cascade Mountains stacks up against other well-photographed colors across different brands and tones.
