I have a pink bathroom what color shower curtain would match

I personally would find a shower curtain that multi colored with a little pink in it and here's a few photo ideas from kohls📌

Depends on the look you are going for....You could do a white, black, grey...or even something with a print that has a bit of pink, but has other colors that fit your style.....perhaps a fun plaid or stripe.

They to go for a blue or purple

My Sister In Law has the pink bathroom if ever there was one. I would go with something in a bright white if your household is neat and tidy, or how about a dark raspberry?

mauve or cream white or magenta

I would go with white,

I would go with white. I used white in our lavender one and I love it

I like pink and green together. Like nature pink flower with green leafs.