How could I use RichText on a chat message?

I want to color a specific part of the chat with “ChatMakeSystemMessage”, but I think I need “RichText”, is it possible to just make a certain part in the string colored while the rest aren’t?

https://developer.roblox.com/en-us/api-reference/function/Chat/Chat

Example:

local Chat = game:GetService("Chat")

local Part = Instance.new("Part")
Part.Parent = workspace

Chat:Chat(Part, "Hello world!", Enum.ChatColor.White)