I second Debra's recommendation of Pink Aloha for a pure pink daylily. It has a lovely clear pink color and the substance is awesome even in 90F+. The other pink daylily that consistently blooms pink for me is Dancing Flamingo. If you like pink eyed daylily, Purify My Heart is a lovely one. Antique Rose is another nice pink one. These won't turn peach in clay soil which I have.
Pink Aloha
Dancing Flamingo
Purify My Heart
