The term "Krishna" (Black/Dark) refers to the fact that the text retains a mixture of Mantras and Brahmana prose within the main body, unlike the "Shukla" (White/Clear) Yajur Veda, which separates them.
You can find digital Sanskrit editions (Devanagari) on the following authoritative platforms: krishna yajur veda pdf sanskrit
If you are downloading the PDF specifically to chant, here are the most famous sections you will find inside: The term "Krishna" (Black/Dark) refers to the fact
