Here is the ordered color palette based on the specified hex codes, sorted from lightest to darkest:

json
{
  "palette_name": "Ordered Calm Study Blues",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
                            
                            #87CEEB
                        "
    },
    {
      "name": "Powder Blue",
      "hex_code": "
                            
                            #B0E0E6
                        "
    },
    {
      "name": "Light Steel Blue",
      "hex_code": "
                            
                            #B0C4DE
                        "
    },
    {
      "name": "Cadet Blue",
      "hex_code": "
                            
                            #5F9EA0
                        "
    },
    {
      "name": "Steel Blue",
      "hex_code": "
                            
                            #4682B4
                        "
    },
    {
      "name": "Deep Sky Blue",
      "hex_code": "
                            
                            #00BFFF
                        "
    }
  ]
}

This ordered palette maintains the calming blue theme while transitioning from lighter shades to darker ones. Would you like to explore any other color schemes or design ideas?