Colonnade Gray vs On The Rocks
Both are Sherwin-Williams colors. Colonnade Gray reads as greige-grey, while On The Rocks reads as grey — two distinct hue families, not close cousins. At LRV 62 vs 53, On The Rocks will read as the brighter of the two — a 9-point gap that matters most in north-facing or low-light rooms. The tonal difference — Colonnade Gray's warm character against On The Rocks's neutral — becomes most visible against white trim or in morning light. At ΔE 5.5, 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.
Colonnade Gray vs On The Rocks in Real Spaces
1 real room side by side. Colonnade Gray and On The Rocks 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. On The Rocks returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Colonnade Gray vs On The Rocks Simulated Comparison
5 simulated room previews — drag the slider on each to see Colonnade Gray on one side and On The Rocks 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.