Here is a color palette featuring two muted blue shades:

json
{
  "palette_name": "Muted Blues",
  "colors": [
    {
      "name": "Dusty Blue",
      "hex_code": "
                            
                            #A4B9D8
                        "
    },
    {
      "name": "Slate Blue",
      "hex_code": "
                            
                            #6A7B9D
                        "
    }
  ]
}

This palette consists of soft and muted blue tones that convey a calm and serene ambiance. Would you like more color options or perhaps a different theme?