No requirements or limits. There''s no purple in the dress, just white, pink, tan, and black I''m a pretty big fan of the Born Safflower, just not sure if the pink will match the pink in the dress (the dress has a pastel pink).
Hum since the dress has a lot going on pattern and color-wise maybe you go away from pink (since it''s a tough color to match perfectly) and use the tan, get a fabulous neutral that you can wear with other outfits too. I couldn''t find one with a fun flower but these are super cute:
Not sure why they''re called "bronze crackle", because that looks like beige suedeish material to me. You can find a nail polish color that matches the pink and paint your toes!