Isle Royale vs Sourdough
Both from PPG's palette. Hue-wise, Isle Royale belongs to the blue family and Sourdough to the beige family. Sourdough (LRV 62) reflects noticeably more light than Isle Royale (LRV 59), a difference of 3 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 33.8, 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
Isle Royale vs Sourdough Simulated Comparison
5 simulated room previews — drag the slider on each to see Isle Royale on one side and Sourdough 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.