Here’s the updated color palette with Bright Magenta replaced by another contrasting color:

json
{
  "palette_name": "Contrasting Harmony",
  "colors": [
    {
      "name": "Deep Plum",
      "hex_code": "
                            
                            #6F2C91
                        "
    },
    {
      "name": "Turquoise Blue",
      "hex_code": "
                            
                            #009B9F
                        "
    },
    {
      "name": "Golden Yellow",
      "hex_code": "
                            
                            #F3C300
                        "
    },
    {
      "name": "Rich Coral",
      "hex_code": "
                            
                            #FF6F61
                        "
    },
    {
      "name": "Cobalt Blue",
      "hex_code": "
                            
                            #004B87
                        "
    },
    {
      "name": "Vivid Lime",
      "hex_code": "
                            
                            #A8D600
                        "
    },
    {
      "name": "Burnt Orange",
      "hex_code": "
                            
                            #D95D00
                        "
    },
    {
      "name": "Bright Purple",
      "hex_code": "
                            
                            #800080
                        "
    },
    {
      "name": "Electric Blue",
      "hex_code": "
                            
                            #00BFFF
                        "
    },
    {
      "name": "Fuchsia",
      "hex_code": "
                            
                            #FF00FF
                        "
    },
    {
      "name": "Bright Teal",
      "hex_code": "
                            
                            #008080
                        "
    },
    {
      "name": "Crimson",
      "hex_code": "
                            
                            #DC143C
                        "
    },
    {
      "name": "Goldenrod",
      "hex_code": "
                            
                            #DAA520
                        "
    }
  ]
}

In this version, Bright Magenta has been replaced with Bright Purple, which adds a unique contrast while enhancing the overall vibrancy of the palette.

Would you like to make any other changes or focus on a specific aspect of your timeline project?