I have made a list of several Thai plumeria sellers and reported them to ebay more than once, because before I became an expert I too was fooled into thinking there were blue, violet/orange, torquoise, purple and other photo-shopped colors which DO NOT EXIST ANYWHERE.
Trouble is, it takes up to 2 years for plumerias to bloom and when yours do, they will all be plain white with or without yellow centers. I have pictures to prove this and the names of all the Thai sellers that use the same pictures, are the same bad seller, but they continue to sell and get good reviews since buyers see this cutting or plant as healthy, not realizing they've been taken!
BUYER BEWARE. A large number of sellers from Thailand are Crooks and the colors you see are 100% fraudulent!
Thanks and I hope anyone who's bought something recently can write bad reviews and get refunds!
