How can I use colors like purple, orange, teal, etc. in --color flags?

[Caboose12000]

The only colors I've found that work in the --color flags are black white blue green yellow and red. Is there a way to spcify color via hex code, or at least a way to see available colors? I haven't been able to find anything in the docs, so if anyone has any knowledge on this I'd really appreciate it!

[CarterLi]

fastfetch --help color

[Caboose12000]

I think I marked this "answered" too quickly out of embarrassment, sorry 😅

after running fastfetch --help color, I see one of the examples says --color 4;92: sets the color to bright Green with underline but when I try to run fastfetch with that flag, I get bash: 92: command not found... I'm sure I'm still missing something silly here, but I can't figure out what I'm doing wrong

[CarterLi]

fastfetch --color '4;92'