Any shade that is not of the nuetral kind on your ketostix is great...because you are either in ketosis or not.

As for purple equaling dehydration, that's not always true. Also with regards to eating high fat causing the purple not always true.

I'm normally deep purple, on a low fat (dr. prescribed), low carb diet and drink 15-20cups of water daily. I'm definitely not consuming lots of fat and not dehydrated. It just means I burn well.

I can fall of the wagon, go nuetral and then be burning again in 1/2 to a days time - just depends on your body.

Just be glad your sticks turn a shade of pink/purple - enjoy!