Undercover vs Prelude
Undercover is a PPG color while Prelude comes from Sherwin-Williams. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 10 and 9, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 1.9, 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
Undercover vs Prelude Simulated Comparison
5 simulated room previews — drag the slider on each to see Undercover on one side and Prelude 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 Undercover comparisons
See how Undercover stacks up against other well-photographed colors across different brands and tones.
