I want to dye my hair!!! HELP!!!?

-I'm thinking about dying just the underneath of my hair (if you know what I'm talking about:P) I'm dirty blonde have some body to it... My only problem is I don't know what colour would look nice/stay in my hair...Im looking to do collies like Red orange yellow green blue purple pink basically all the

Bright fun colours and shiz well thanks for your help I hope whatever colour I choose will be nice (I hope)I wouldnt do any of those but it's not me we are talking about, it's you. So I would say that you should pick either blue, green, or pink. Or just pick your favorite color! :DMaybe you could "fade" the colors in your undertones. Like take green and gradually fade it into blue as it goes through your hair. If it were me, I wouldn't add that many colors, but if that's what you want, then go for it! It would look original and cute! If I were adding all of these colors I'd try out the "fade style" though, or maybe some rainbow raccoon tails?? Hope this helps!
Purple looks really pretty with dirty blonde hair, but be REALLY careful what hair dye you use. I dyed my hair dark purple once, and when I showered to rinse it out it turned my entire body purple. And the downside to purple hair dye is that it'll turn red pretty quickly. But if you do it right, it may stay in for a while. Hope I could have been of some help!
okay dye it like electric blue, but only under your hair !
I would do streaks of purple in my bangs