Here is a color palette inspired by navy blue and mustard yellow:

json
{
  "palette_name": "Navy & Mustard Delight",
  "colors": [
    {
      "name": "Navy Blue",
      "hex_code": "
                            
                            #001F3F
                        "
    },
    {
      "name": "Mustard Yellow",
      "hex_code": "
                            
                            #FFCC00
                        "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
                            
                            #87CEEB
                        "
    },
    {
      "name": "Slate Gray",
      "hex_code": "
                            
                            #708090
                        "
    },
    {
      "name": "Warm Beige",
      "hex_code": "
                            
                            #F5F5DC
                        "
    }
  ]
}

This palette combines the deep, calming effect of navy blue with the vibrant and cheerful quality of mustard yellow, complemented by lighter shades of blue and neutral tones for balance.

Would you like to explore more color combinations or perhaps specific applications for this palette?