[name_u]Ruby[/name_u] and [name_f]Violet[/name_f] - bc two syllable flows best. I like the theme and look of [name_f]Violet[/name_f] best, but [name_u]Ruby[/name_u] sounds better. You could also use [name_f]Lucy[/name_f], [name_f]Marnie[/name_f], [name_f]Ivy[/name_f], [name_f]Daphne[/name_f], [name_f]Zoe[/name_f], [name_f]Hattie[/name_f] etc.
I like the [name_u]Ruby[/name_u], [name_f]Violet[/name_f], and [name_f]Maeve[/name_f] combos, my favorite is probably [name_f]Violet[/name_f] Pieternella.