Here is a color palette based on your specifications:

json
{
  "palette_name": "Navy Coral Harmony",
  "colors": [
    {
      "name": "Deep Navy",
      "hex_code": "
                            
                            #1E2A38
                        "
    },
    {
      "name": "Coral Accent",
      "hex_code": "
                            
                            #FF6F61
                        "
    },
    {
      "name": "Cool Gray",
      "hex_code": "
                            
                            #D9D9DD
                        "
    },
    {
      "name": "Slate",
      "hex_code": "
                            
                            #2F3B47
                        "
    }
  ]
}

Palette Description:

The “Navy Coral Harmony” palette features a deep navy as its primary color, providing a strong and sophisticated foundation. The coral accent adds a vibrant and energetic touch, creating a striking contrast. The cool gray serves as a neutral light tone, balancing the palette, while the slate offers depth and stability as a neutral dark shade.

Would you like to explore more palettes or perhaps need assistance with color pairings?