First I thought you have those scented TC but the bottle is different, all BS or TC's from Color Club I saw have a different name. :D Now I want to know too! :)
I got these with the Back to Boho sets and Molten Metal set but I have no idea as I threw away packets! lol
I would say the pink one is a base and the blue is a top. Lots of top coats have a violet tint to them.
Can you post on twitter or facebook to Color Club and ask them. Someone there has to know. :)
I would guess the same as you. Base coats often have a pinky tinge, while top coats are clearer.
the blue one is definitely TC, I have it from the Foiled set :)
The pink is always the basecoat.