Here is a color palette based on your request for a project action tracker scheme with three colors, each at 40% opacity.

json
{
  "palette_name": "Action Tracker Scheme 3",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Lime Green",
      "hex_code": "
          
          #32CD32
       "
    },
    {
      "name": "Coral",
      "hex_code": "
          
          #FF7F50
       "
    }
  ]
}

This palette features a calming sky blue, a vibrant lime green, and an energetic coral, each designed to bring clarity and focus to your project tracking.

Would you like to know more about how to use these colors or need additional colors for your project?