two colors - need to decide NOW

I like Orange/Yellow/Lime Green/Purple because people can see you coming.
“How could you not see my car and hit me"?

I agree with that. I had a dark green Challenger, it was hit 3 times. People said they didn't even see it. So I switched to bright colours. I repainted the Challenger to Green Go, nobody could miss it. Sorry I sold it though.