There are times when Honkai: Star Rail dialogue will be highlighted by a different color. This implied that a variety of font colors would be available for everyone, so players started messing around with it. Eventually, they discovered that your username and bio description could, in fact, have different colors as long as you used the correct prompt for that
Unless you did it as soon as the thought crossed your mind, it might simply be unavailable for players from now on.
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How to Edit Your Profile Name Color in Honkai: Star Rail
The feature/exploit has been patched out by Hoyoverse, so you can’t do it anymore. You might still see various players in your friend list or Support players with their usernames colored in blue, with their bios coming in various different colors since they have kept those even after the mini-update.
In the meantime, enjoy while you can if you were one of the lucky few who managed to do it. Hoyoverse bonking us yet again with his no-fun hammer.
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Anyhow, the trick was as simple as you could imagine. For a blue username, simply type your username in the following text box and check it out. Bios work the same, but you can use any color due to the longer character limit. Adding an HTML color code to your username will unlock a cooler profile. Here is an example:
You can find these codes by Googling “html color codes” and clicking the first non-suspicious link you see. For example, the text above turns into a Teal shade.
It should be noted that using the commands like s> Username here /s> will also strike through your text. Sadly, all of these commands are currently unavailable, possibly forever.