Here is a color palette based on your request:

json
{
  "palette_name": "Navy and Ice Blue Harmony",
  "colors": [
    {
      "name": "Primary Navy",
      "hex_code": "
          
          #003366
       "
    },
    {
      "name": "Secondary Ice Blue",
      "hex_code": "
          
          #E6F0FA
       "
    },
    {
      "name": "Background White",
      "hex_code": "
          
          #FFFFFF
       "
    }
  ]
}

This palette combines a deep, rich navy as the primary color with a soft, refreshing ice blue as a secondary accent. The background is kept bright and clean with pure white, allowing the navy and ice blue to stand out beautifully.

Would you like to explore more color combinations or perhaps get suggestions for how to use these colors in a design?