Here is a neutral color palette suitable for use in Excel:

json
{
  "palette_name": "Neutral Excel Palette",
  "colors": [
    {
      "name": "Light Gray",
      "hex_code": "
          
          #D3D3D3
       "
    },
    {
      "name": "Medium Gray",
      "hex_code": "
          
          #A9A9A9
       "
    },
    {
      "name": "Dark Gray",
      "hex_code": "
          
          #808080
       "
    },
    {
      "name": "Beige",
      "hex_code": "
          
          #F5F5DC
       "
    },
    {
      "name": "Taupe",
      "hex_code": "
          
          #BDB76B
       "
    },
    {
      "name": "Off White",
      "hex_code": "
          
          #FAF0E6
       "
    }
  ]
}

This palette features soft, neutral tones that enhance readability and create a professional look in your Excel spreadsheets. Would you like to explore specific shades or additional palettes?