I don't mind the name myself, but prefer it for a mn. I think there could be some very interesting pronunciations if used for a fn! What about
Lucy Fuchsia,
Mary Fuchsia,
Elizabeth Fuchsia,
Gwendolyn Fuchsia,
Katherine Fuchsia,
Zoe Fuchsia,
Miriam Fuchsia,
Jane Fuchsia,
Adele Fuchsia,
Abby Fuchsia and
Renee Fuchsia.
As for a sibling name, I think Fuchsia,
Dahlia and
Lavender work well, as does Fuchsia,
Dahlia and
Hyacinth.