How much is a hex in euros?

I'm curious, could you please clarify what you mean by "a hex" in the context of cryptocurrency or finance? Are you referring to a specific cryptocurrency token or coin, or perhaps a unit of measurement within a blockchain platform? Without more context, it's difficult to provide an accurate answer in euros or any other currency. If you could elaborate on your question, I'd be happy to help you understand the value or exchange rate of the asset you're inquiring about.