Minecraft – How to only stylize parts of the tellraw command

You can't put JSON text formatting in entity names (nor in things like item names/lore). Instead, you should use the section symbol, "§", and a formatting code. E.G: §c before the name for red, §l before the name for bold.

You can't paste or type § directly into chat, though. Instead, you'll need to use a server console (or RCON), or an external tool such as MCEdit or NBTExplorer.

Do this for all of your armor stands. I believe this is the only way for it to work. It is going to be more command blocks, but I think its the only working one.

/execute @e[type=ArmorStand,name=(insertname)] ~ ~ ~ tellraw @a[score_goto=-1]
  {
    "selector": "@e[type=ArmorStand,r=1]",
    "clickEvent": {
      "action": "run_command",
      "value": "/tp @p @e[type=ArmorStand,name=(insertname)]"
    },
    "color":"blue"
  }