Here is a color palette that embodies a readable, playful, and outdoorsy theme suitable for your camping spreadsheet:

json
{
  "palette_name": "Outdoor Adventure",
  "colors": [
    {
      "name": "Forest Green",
      "hex_code": "
          
          #228B22
       "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Sunshine Yellow",
      "hex_code": "
          
          #FFD700
       "
    },
    {
      "name": "Earthy Brown",
      "hex_code": "
          
          #8B4513
       "
    },
    {
      "name": "Mountain Gray",
      "hex_code": "
          
          #A9A9A9
       "
    }
  ]
}

This palette features colors that reflect nature, providing a balance of vibrancy and readability.

Would you like to know more about how to apply these colors in your spreadsheet, or do you have any other requests?