All hypothetical, but what names would you include in a sibset for [name_f]Violet[/name_f]? Also any other suggestions are welcome 
Daphne and [name_m]Hugo[/name_m] would be my top picks — both share [name_f]Violet[/name_f]’s sophisticated, understated, cool vintage vibe.
I’ll suggest [name_f]Sylvie[/name_f], [name_f]Phoebe[/name_f], [name_f]Olive[/name_f], [name_f]Margot[/name_f] and [name_f]Elowen[/name_f] for a girl, and [name_u]August[/name_u], [name_u]Rowan[/name_u], [name_m]Felix[/name_m], [name_m]Otto[/name_m] and [name_u]Jasper[/name_u] for a boy.
Elinor and [name_m]Hugo[/name_m] are my top picks, but I also voted for [name_f]Primrose[/name_f], [name_u]Florence[/name_u], [name_f]Elodie[/name_f] and [name_u]Atlas[/name_u]. That’s not to say there aren’t other names I like on the lists but these are my favourites and the ones I think go best with [name_f]Violet[/name_f]. Although visually I quite like [name_u]Hayes[/name_u] with [name_f]Violet[/name_f] too, even though they feel quite different in style.
I’d suggest [name_f]Matilda[/name_f], [name_f]Clementine[/name_f], [name_f]Thea[/name_f], [name_f]Clara[/name_f], [name_f]Margot[/name_f], [name_f]Freya[/name_f], [name_f]Beatrix[/name_f], [name_f]Iris[/name_f], [name_f]Maeve[/name_f], [name_f]Willa[/name_f], [name_f]Ada[/name_f], [name_f]Eloise[/name_f], [name_f]Flora[/name_f], [name_f]Amelie[/name_f], [name_f]Freya[/name_f], [name_u]Jasper[/name_u], [name_u]Kit[/name_u], [name_m]Sebastian[/name_m], [name_m]Atticus[/name_m], [name_m]Dashiell[/name_m], [name_m]Felix[/name_m], [name_m]Rafferty[/name_m], [name_m]Wilfred[/name_m], [name_m]Hugo[/name_m], [name_u]Miles[/name_u], [name_m]Otto[/name_m], [name_m]Caspar[/name_m], [name_u]Jude[/name_u], [name_u]Remy[/name_u], [name_m]Lucian[/name_m].
I voted [name_f]Elodie[/name_f] for a sister and [name_u]Laurence[/name_u] and [name_u]Hayes[/name_u] for a brother. While the other names may pair well, I feel like many of the girl names are overused (or at least overused on Nameberry).
Daphne or [name_f]Elinor[/name_f] / [name_f]Eleanor[/name_f] and [name_m]Hugo[/name_m] or [name_u]Laurence[/name_u]. [name_f]My[/name_f] top picks would be [name_f]Daphne[/name_f] and [name_m]Hugo[/name_m], though.
Hugo and [name_u]Laurence[/name_u] for brothers 
And for girls I love all the names but I would personally avoid another flower name
I’d hesitate to add another floral/botanical name… it might look like you’re establishing a pattern.
Okay, [name_f]Violet[/name_f] and [name_f]Hazel[/name_f] is my go to nature related sibset. I love [name_f]Eleanor[/name_f] with [name_f]Violet[/name_f] as well! [name_f]Violet[/name_f] flows well with [name_m]Hugo[/name_m] and [name_u]Hayes[/name_u] too!
Eleanor, [name_f]Hazel[/name_f], [name_u]Florence[/name_u], and [name_m]Hugo[/name_m] are my favorites 
Going to have to echo [name_f]Daphne[/name_f] and [name_m]Hugo[/name_m] as the perfect pairings.
Continuing the discussion from Sister/Brother for Violet–Poll:
Hazel and Violet is my go to nature related sibling set