Here is a color palette designed for a stacked color chart with 9 distinct values. The colors are chosen to provide good contrast and visibility when stacked.

json
{
  "palette_name": "Stacked Color Chart 9 Values",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Sunshine Yellow",
      "hex_code": "
          
          #FFD700
       "
    },
    {
      "name": "Coral",
      "hex_code": "
          
          #FF7F50
       "
    },
    {
      "name": "Lime Green",
      "hex_code": "
          
          #32CD32
       "
    },
    {
      "name": "Orchid",
      "hex_code": "
          
          #DA70D6
       "
    },
    {
      "name": "Tomato",
      "hex_code": "
          
          #FF6347
       "
    },
    {
      "name": "Steel Blue",
      "hex_code": "
          
          #4682B4
       "
    },
    {
      "name": "Goldenrod",
      "hex_code": "
          
          #DAA520
       "
    },
    {
      "name": "Slate Gray",
      "hex_code": "
          
          #708090
       "
    }
  ]
}

This palette includes a variety of colors that should work well together in a stacked format. Would you like to know more about how to use this palette or any specific application for it?