It appears the fraudulent plant sellers have now invaded Amazon.com Buyers beware; there is no such thing as blue varieties of plumeria. Bottom line: if you see a plant/blooms with outrageous color(s), do your due dilligence, research it. You will find the majority of these images are Photoshopped (or some other color editting). In fact, the identical identical pictures can be found on eBay and have been recycled among fraudulent sellers for years. Many times, the seller just changes their user name and reposts them. You commonly see the same thing from rose and hibiscus dealers.
These same sellers have been running these same scams on eBay for years. Ebay still has done nothing about these crooks and I don't anticipate Amazon will be any different. I reported these sellers to Amazon as well as informed them that I will be filing a report on this site. The original report I filed with this site, back in 2013 about eBay, is listed here:
http://www.ripoffreport.com/reports/ebay/san-jose-california-95125/ebay-plumeria-buyers-beware-san-jose-california-1050151
99% of these sellers are based overseas, particularly Thailand. This makes it much easier for them to run this scam. The lack of viability of these plants can be blamed on lengthy shipping, quarantine, and phytosanitary procedures encountered trying to get the plant into the USA.