Here is a color palette designed specifically for a 9-color pie chart:

json
{
  "palette_name": "Vibrant 9 Color Palette",
  "colors": [
    {
      "name": "Crimson",
      "hex_code": "
                            
                            #DC143C
                        "
    },
    {
      "name": "Goldenrod",
      "hex_code": "
                            
                            #DAA520
                        "
    },
    {
      "name": "MediumSeaGreen",
      "hex_code": "
                            
                            #3CB371
                        "
    },
    {
      "name": "DodgerBlue",
      "hex_code": "
                            
                            #1E90FF
                        "
    },
    {
      "name": "SlateBlue",
      "hex_code": "
                            
                            #6A5ACD
                        "
    },
    {
      "name": "Orchid",
      "hex_code": "
                            
                            #DA70D6
                        "
    },
    {
      "name": "Coral",
      "hex_code": "
                            
                            #FF7F50
                        "
    },
    {
      "name": "SandyBrown",
      "hex_code": "
                            
                            #F4A460
                        "
    },
    {
      "name": "LightSlateGray",
      "hex_code": "
                            
                            #778899
                        "
    }
  ]
}

This palette features a vibrant mix of colors that work well together, providing clear differentiation for each segment of a pie chart.

Would you like any specific themes or styles for the pie chart?