Here’s a revised color palette with more light blue shades and without the coral reef color:

json
{
  "palette_name": "Serene Ocean Blues",
  "colors": [
    {
      "name": "Midnight Blue",
      "hex_code": "
          
          #0A3142
       "
    },
    {
      "name": "Aqua Marine",
      "hex_code": "
          
          #1B4D6E
       "
    },
    {
      "name": "Light Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Powder Blue",
      "hex_code": "
          
          #B0E0E6
       "
    },
    {
      "name": "Deep Sea",
      "hex_code": "
          
          #003B5C
       "
    }
  ]
}

This updated palette maintains the deep ocean theme while introducing lighter blue shades for a more airy and serene feel.

Would you like further adjustments or suggestions on how to implement this palette in your project?