my colors are an eggplan purple ( its a deep purple) and white so for my bouquet i want to do all dark purple roses and for the bridesmaids have theirs white roses with the purple ribbion. i LOVE the dark purple roses that i found on google but the florist said they were dyed that color sooo im having mine dyed and wondering if the dye could get on my dress and if so if any steps to take to prevent it? HELP