Here is a modern color palette featuring shades of blue, red, and green, along with additional complementary colors:

json
{
  "palette_name": "Modern Blue Red Green Palette",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Crimson Red",
      "hex_code": "
          
          #DC143C
       "
    },
    {
      "name": "Forest Green",
      "hex_code": "
          
          #228B22
       "
    },
    {
      "name": "Slate Blue",
      "hex_code": "
          
          #6A5ACD
       "
    },
    {
      "name": "Salmon Pink",
      "hex_code": "
          
          #FA8072
       "
    },
    {
      "name": "Olive Green",
      "hex_code": "
          
          #808000
       "
    },
    {
      "name": "Light Coral",
      "hex_code": "
          
          #F08080
       "
    },
    {
      "name": "Teal",
      "hex_code": "
          
          #008080
       "
    }
  ]
}

This palette combines vibrant shades of blue, red, and green with some softer hues for a balanced and modern look.

Would you like assistance with anything else, such as suggestions for using this palette in your designs?