Here is a color palette based on your request for polymer banknote hues, focusing on blue, green, and purple:

json
{
  "palette_name": "Polymer Banknote Hues",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Emerald Green",
      "hex_code": "
          
          #50C878
       "
    },
    {
      "name": "Lavender Purple",
      "hex_code": "
          
          #E6E6FA
       "
    },
    {
      "name": "Teal Blue",
      "hex_code": "
          
          #008080
       "
    },
    {
      "name": "Mint Green",
      "hex_code": "
          
          #98FF98
       "
    },
    {
      "name": "Royal Purple",
      "hex_code": "
          
          #663399
       "
    }
  ]
}

This palette combines soft and vibrant hues reminiscent of polymer banknotes, providing a lively yet sophisticated range of colors.

Would you like to explore more about how to use these colors or need additional options?