Based on your query for a color palette inspired by “de lapis-lazuli alizarine à bleu saphir,” here is a curated color palette:

json
{
  "palette_name": "Lapis Lazuli Alizarine to Sapphire Blue",
  "colors": [
    {
      "name": "Lapis Lazuli Alizarine",
      "hex_code": "
                            
                            #1E3A78
                        "
    },
    {
      "name": "Deep Azure",
      "hex_code": "
                            
                            #003DA5
                        "
    },
    {
      "name": "Royal Blue",
      "hex_code": "
                            
                            #4169E1
                        "
    },
    {
      "name": "Sapphire Blue",
      "hex_code": "
                            
                            #0F52BA
                        "
    },
    {
      "name": "Bright Cobalt",
      "hex_code": "
                            
                            #0047AB
                        "
    }
  ]
}

This palette transitions from the deep, rich tones of lapis lazuli alizarine to the striking and vibrant shades of sapphire blue, creating a sophisticated and elegant color scheme.

Would you like to discuss how to use these colors in a specific design project or any other context?