A log of some good gradients I've made. Pasting this into console applies the selected gradient to every message you send on that device. It's a good way to always have cool text if you want that.

To have only one message with an applied gradient, you have to send this code around your message:

<gradient=[right: red, orange, yellow, green, blue, purple, magenta]>[Your text goes here]</g>

You replace the colors with either broader terms such as "red", "green", etc.

Or you can use the specific hex colors, which you can get on an Online Color Picker.

Another incredible website for gradients (permanent only) is Acai's/Death's Chat Colors.

The following are examples of permanent gradients: