Here is a color palette based on your request, including the color #003773 :

json
{
  "palette_name": "Ocean Depths",
  "colors": [
    {
      "name": "Deep Sea Blue",
      "hex_code": "
          
          #003773
       "
    },
    {
      "name": "Coral Reef",
      "hex_code": "
          
          #FF6F61
       "
    },
    {
      "name": "Seafoam Green",
      "hex_code": "
          
          #2ED573
       "
    },
    {
      "name": "Sunset Orange",
      "hex_code": "
          
          #FF9F00
       "
    }
  ]
}

This palette, named “Ocean Depths,” draws inspiration from the ocean’s colors, combining deep blues with vibrant coral and warm sunset hues.

Would you like to explore more colors or perhaps create a different palette?