Here is a color palette based on your request for twelve colors:

json
{
  "palette_name": "Palette de Couleurs Vives",
  "colors": [
    {
      "name": "Rouge",
      "hex_code": "
                            
                            #FF0000
                        "
    },
    {
      "name": "Vermillon",
      "hex_code": "
                            
                            #E03C31
                        "
    },
    {
      "name": "Orange",
      "hex_code": "
                            
                            #FFA500
                        "
    },
    {
      "name": "Souci",
      "hex_code": "
                            
                            #F6A600
                        "
    },
    {
      "name": "Jaune",
      "hex_code": "
                            
                            #FFFF00
                        "
    },
    {
      "name": "Chartreuse",
      "hex_code": "
                            
                            #7FFF00
                        "
    },
    {
      "name": "Vert",
      "hex_code": "
                            
                            #008000
                        "
    },
    {
      "name": "Aigue-marine",
      "hex_code": "
                            
                            #7FFFD4
                        "
    },
    {
      "name": "Bleu",
      "hex_code": "
                            
                            #0000FF
                        "
    },
    {
      "name": "Violet",
      "hex_code": "
                            
                            #800080
                        "
    },
    {
      "name": "Pourpre",
      "hex_code": "
                            
                            #A020F0
                        "
    },
    {
      "name": "Magenta",
      "hex_code": "
                            
                            #FF00FF
                        "
    }
  ]
}

This palette includes a vibrant selection of colors ranging from warm tones like red and orange to cool shades such as blue and aqua. It’s perfect for creating bold and eye-catching designs.

Do you have any specific projects in mind where you would like to use this palette? Or would you like to modify any of the colors?