I'm using /tellraw to make myself be happy for my map on some of the stuffs i needed for command blocks, but I can't do some of the Multiple colors and text like from the other maps with the names "" and using colored chat. (By the way DrStranger is just an example, but I still need some help thou.)
21 Answer
You can not only make colored text, but also add different stuff like bold, underline, italic etc.
In order to make it just put:
{"text":"mytext","color":"...",...} after each and separate with commas. E.G
/tellraw @a ["",{"text":"first","color":"red"},{"text":"second","color":"green"},{"text":"third","color":"blue"},{...},...] 
