It's my initials, since my IRL name is so freakin boring that there's usually several other people with my same exact name in the same place as me (fun fact, in college, I was confused with another person with my name, so I had to go to the records office to get a new ID and there were 7 other people in my school with the same first, middle, and last name as I). So using my initials was basically how I nabbed a website out of school, haha. But, almost everyone who first sees it, thinks I'm a boy because Raj is a popular boys name in India, so no matter what I do my name is normie as hell.
For a little while I really wanted to be unique and cool so my username and my shop name was PhtaloAzul, Pthalo for Pthalocyanine, which is my favorite paint to use and also my favorite color, Azul for blue in Spanish. But, no one could pronounce it so I had to change it because uh, marketing tip--don't ever use a longass name no one can spell. People kept asking me where I was from because they assumed it was a Eastern European word or something when it's like...no, it's just paint.