I think color analysis is a good jumping off point if you really have no idea what colors look best on you, but I'd take it with a grain of salt, and see what you like and what you feel good in. If you introduce colors into your wardrobe that you wouldn't have previously thought of wearing, then I think it's successful.
Some people are very serious about "personal color analysis", and feel that wearing the "wrong" color for you skin tone basically ruins your outfit, or makes you look tired/old, etc. But I think you have to like the colors you're wearing. For instance, I'm supposed to stay away from black, and white, and instead wear brown or "softer" neutrals (taupe, khaki, etc). But I HATE to wear brown (other than maybe caramel brown). So, theoretically, it might keep me from looking, "tired/old" but I will feel terrible wearing it. It literally makes me feel bad to wear a color I don't like, but cheerful wearing a color I do like. So if you find out that your absolutely favorite color isn't in your "season" or "personal palette," I'd just throw that out the window and wear it anyway. It's better that you are happy with what you're wearing than worrying whether the shade of pink you're wearing has yellow undertones and gives your cheeks a nice flush (or whatever). Does that make sense?
