Here is a color palette based on your request for dark blue with two highly contrasting colors:

json
{
  "palette_name": "Bold Contrast",
  "colors": [
    {
      "name": "Dark Blue",
      "hex_code": "
          
          #003366
       "
    },
    {
      "name": "Bright Yellow",
      "hex_code": "
          
          #FFFF00
       "
    },
    {
      "name": "Vivid Pink",
      "hex_code": "
          
          #FF007F
       "
    }
  ]
}

Palette Description:

This palette features a deep, rich dark blue as the primary color, providing a strong and sophisticated base. It is complemented by a bright yellow, which adds a lively and energetic contrast, and a vivid pink that brings a playful and bold touch. Together, these colors create a striking visual impact.

Would you like to explore more colors or specific applications for this palette?