Here are a couple of examples of what I mean from recent posts. If you are interviewing in a very conservative industry, a very neutral color might be good.
Zoya Happi is a pretty pink with a bit of shimmer if you feel like being a bit prettier on your interview day.
Literary Lacquers has this color, which they call an "office holo."
I think any of these would work great!
What's your approach to interview style, makeup or nail polish? Post in the comments!