Here is an 11-color palette based on your request, incorporating the specified base colors and creating a harmonious set:

json
{
  "palette_name": "Harmonious Vibes",
  "colors": [
    {
      "name": "Teal",
      "hex_code": "
          
          #48818d
       "
    },
    {
      "name": "Deep Violet",
      "hex_code": "
          
          #664fa3
       "
    },
    {
      "name": "Berry Pink",
      "hex_code": "
          
          #a64d79
       "
    },
    {
      "name": "Coral",
      "hex_code": "
          
          #ff6f61
       "
    },
    {
      "name": "Soft Lavender",
      "hex_code": "
          
          #d6c8e2
       "
    },
    {
      "name": "Mint Green",
      "hex_code": "
          
          #B2E2D8
       "
    },
    {
      "name": "Golden Yellow",
      "hex_code": "
          
          #f6a600
       "
    },
    {
      "name": "Peach",
      "hex_code": "
          
          #ffab8e
       "
    },
    {
      "name": "Seafoam Green",
      "hex_code": "
          
          #A4D9D8
       "
    },
    {
      "name": "Light Mauve",
      "hex_code": "
          
          #E2B5C4
       "
    },
    {
      "name": "Lavender Blue",
      "hex_code": "
          
          #A7C6ED
       "
    }
  ]
}

This palette blends cool and warm tones, creating a visually appealing and harmonious collection. Would you like to know more about how to apply these colors, or do you have any specific projects in mind?