Here is a vibrant 13-color palette with contrasting differences:

json
{
  "palette_name": "Vibrant Contrast Palette",
  "colors": [
    {
      "name": "Crimson Red",
      "hex_code": "
                            
                            #DC143C
                        "
    },
    {
      "name": "Deep Sky Blue",
      "hex_code": "
                            
                            #00BFFF
                        "
    },
    {
      "name": "Lime Green",
      "hex_code": "
                            
                            #32CD32
                        "
    },
    {
      "name": "Golden Yellow",
      "hex_code": "
                            
                            #FFD700
                        "
    },
    {
      "name": "Medium Orchid",
      "hex_code": "
                            
                            #BA55D3
                        "
    },
    {
      "name": "Coral",
      "hex_code": "
                            
                            #FF7F50
                        "
    },
    {
      "name": "Slate Blue",
      "hex_code": "
                            
                            #6A5ACD
                        "
    },
    {
      "name": "Tomato",
      "hex_code": "
                            
                            #FF6347
                        "
    },
    {
      "name": "Turquoise",
      "hex_code": "
                            
                            #40E0D0
                        "
    },
    {
      "name": "Orange Red",
      "hex_code": "
                            
                            #FF4500
                        "
    },
    {
      "name": "Dark Violet",
      "hex_code": "
                            
                            #9400D3
                        "
    },
    {
      "name": "Chartreuse",
      "hex_code": "
                            
                            #7FFF00
                        "
    },
    {
      "name": "Fire Brick",
      "hex_code": "
                            
                            #B22222
                        "
    }
  ]
}

This palette includes a mix of warm and cool colors with high contrast, making it suitable for various design applications.

What kind of project do you plan to use this palette for?