Here’s a color palette based on your request for a complementary trio that is toned down and mellow:

json
{
  "palette_name": "Mellow Complementary Trio",
  "colors": [
    {
      "name": "Soft Sage",
      "hex_code": "
                            
                            #B2C9B2
                        "
    },
    {
      "name": "Dusty Coral",
      "hex_code": "
                            
                            #D6A5A1
                        "
    },
    {
      "name": "Muted Lavender",
      "hex_code": "
                            
                            #C3B1D1
                        "
    }
  ]
}

This palette features soft, earthy tones that create a calming and soothing atmosphere. The complementary colors work well together while maintaining a mellow aesthetic.

Would you like to explore additional palettes or specific color combinations?