While the encore azaleas can take some sun they aren't really sun loving. How much sun are you talking about and what part of the day?
The coral color should be easy to combine with any cool color plants you like I could see them with 'Caesar's Brother Iris and huecera or hostas.

Ilikemud, thank you for answering. They get morning sun mostly. I am not familiar with these plants you mentioned so I will have to do some research. Thank you kindly.