You can customize the color of your username in chat, the color of your chat messages, and the color used to display other players' usernames.
Please note: These customization options are only available on the Web version of the game.
Change Your Chat Colors
Enter a game room.
Click your avatar in the top-right corner of the screen.
Click Settings.
Open the Colours section.
Select one of the following:
Your username
Your text
Other Usernames
Choose your preferred color.
Your changes are applied immediately.