The Dell XPS 15 9500 is available to order in Frost White, at long last. Officially called "Frost White with White Palmrest", the option is only configurable in some markets like the US and Canada.
https://www.notebookcheck.net/The-Dell-XPS-15-9500-is-finally-available-to-order-in-Frost-White-prices-start-at-US-1-549-99.485181.0.html