Here is a new color palette featuring three different colors that do not include green or red, designed for a versatile action tracker scheme, each at 40% opacity.

json
{
  "palette_name": "Neutral Action Tracker Scheme",
  "colors": [
    {
      "name": "Slate Gray",
      "hex_code": "
          
          #708090
       "
    },
    {
      "name": "Burnt Sienna",
      "hex_code": "
          
          #E97451
       "
    },
    {
      "name": "Royal Blue",
      "hex_code": "
          
          #4169E1
       "
    }
  ]
}

This palette features a professional slate gray, a warm burnt sienna, and a striking royal blue, providing a balanced and neutral selection for your project tracking needs.

Would you like the RGB values for these colors or any other variations?