How to add an intro text to my minecraft map?

The command is, /title @a title {text:"Puzzle map", color: yellow}, now there are specific names for the colors, and there's not many of them, dark_aqua and dark_red being a few you could do. Also, you would need to run the subtitle command first, since it doesn't show until you show the title, the command is /title @a subtitle {text:"By: person, color: white}, also, if you want to see all the colors, go to http://www.dragnoz.com/minecraft-title-generator/ and scroll until you get to the color drop down menu.