there are a few lilies known as bella donnas, make sure you take a pic with you and ASK a florist in person with the pic so she knows which lily you are after.
As a florist I have brides insisting that there are dark blue roses becuase you can get silk ones!!!
I have to tell them no there are no dark blue roses, but there are roses with blue in their names, blue moon for example and it's lilac.
S o get a pic and see a florist