If you are working with critical, high-end production, rely on physical guidebooks:
This article explains what TCX and TPX mean, why the codes differ, and how to accurately convert from one to the other. pantone tcx to tpx converter
If a perfect match between a plastic part and a fabric trim is non-negotiable, choose one substrate as the "Master Standard." Send physical cuttings of that master to all vendors so they can adjust their dye lots to match the physical sample, rather than relying solely on the book numbers. If you are working with critical, high-end production,
: The numeric part of the code (e.g., "19-4052") is the same for TCX, TPX, and TPG versions of a color. If you have a TPX code, its TCX equivalent uses the exact same number . The conversion is often simply changing the suffix, but always verify , as material differences can result in slight shifts. If you have a TPX code, its TCX