(NOT urgent 🙂‍↕️) I see something I can't identify // what's the real color of our veins?

I did google and nothing came up except that our blood isn't blue 😭😭😭 I hope my tag is correct

I'm trying to know if I've hit a vein. I'm safe now (and I have nurses but they won't answer my questions), I'm just trying to comprehend my wounds. Anatomically it's possible I've hit a vein, but I have no clue what that would even look like.

A description of what I see: >!there's bit of white that stands out (manner of speech, it doesn't actually stand out or protude), I don't think it's fat tissue because I can see that across the whole wound. I have a second wound that could've hit a vein and they both have that intriguing speck of white.!<

I doubt it's a vein but just what is it?