Hello!
So sorry for the late message about your rank, I've not been around much the past couple of days.
You mentioned about having a blue and purple gradient for the text, unfortunately we can only use the colors which Minectaft supports (these can be seen here: https://mctools.org/motd-creator)
If you could take a look at it and let me know how you would like the title formatted I can get the rank made for you today