Cool Slate vs On The Rocks
Cool Slate is a PPG color while On The Rocks comes from Sherwin-Williams. Hue-wise, Cool Slate belongs to the greige-grey family and On The Rocks to the grey family. With LRVs of 62 and 62, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 1.1, the difference is subtle — you'd need them side by side to reliably tell them apart. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Cool Slate vs On The Rocks Simulated Comparison
5 simulated room previews — drag the slider on each to see Cool Slate 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.
More Cool Slate comparisons
See how Cool Slate stacks up against other well-photographed colors across different brands and tones.
