: Since TCX represents how a colour appears on fabric, converters often provide a "similarity percentage" to show how accurately a digital screen colour can be replicated in a cotton medium.
Assume you are a fashion designer needing to match a shoe sole to a fabric. You have a TCX code but need a plastic manufacturer (who uses RAL) to see the color. tcx pantone converter
They often use 2010-era databases, missing newer TCX colors (like the 2021-2024 collections). They also lack spectral LAB data. : Since TCX represents how a colour appears