Here is a color palette based on your query:

json
{
  "palette_name": "Blue Serenity",
  "colors": [
    {
      "name": "Navy Blue",
      "hex_code": "
          
          #2C3E50
       "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #3498DB
       "
    },
    {
      "name": "Pure White",
      "hex_code": "
          
          #FFFFFF
       "
    }
  ]
}

Palette Description:

The “Blue Serenity” palette combines the deep, calming tones of Navy Blue with the vibrant brightness of Sky Blue, complemented by the purity of Pure White. This palette evokes a sense of tranquility and openness, making it suitable for designs that aim to inspire calmness and clarity.

Would you like to explore more about color combinations or have any specific design ideas in mind?