There is no direct 1:1 mathematical formula for converting TCX to C because they use different pigments and substrates. Cotton (TCX) absorbs light differently than a glossy coated paper (C), meaning even "matching" colors will have different visual depths. Methods for Conversion Official Pantone Connect Tool : The most accurate method is using the Pantone Connect

: Pantone C colors often appear more vibrant or "saturated" because the coating on the paper prevents ink absorption. TCX colors can appear softer or more matte. Metamerism

If you'd like, I can help you find a specific match if you tell me: are you starting with? What is the final product (e.g., a logo on a box, a plastic button)? Do you have physical swatches , or are you working strictly digitally

Approximately 60% of TCX colors do not have a direct numerical equivalent in the C library. In these cases, you must perform a .

If you don't have the tools, use digital values as a "middleman": for your TCX color (e.g., Pantone 19-4052 TCX Classic Blue is #0F4C81). Search for that Hex code in a PMS Coated library

For digital renderings where absolute accuracy isn't required: