Here is a color palette inspired by your description of “de grenadine à grenat de grève”:

json
{
  "palette_name": "Grenadine to Strike Garnet",
  "colors": [
    {
      "name": "Grenadine",
      "hex_code": "
                            
                            #FF4F4F
                        "
    },
    {
      "name": "Coral Red",
      "hex_code": "
                            
                            #FF6F61
                        "
    },
    {
      "name": "Ruby Red",
      "hex_code": "
                            
                            #C72C41
                        "
    },
    {
      "name": "Garnet",
      "hex_code": "
                            
                            #9B1B30
                        "
    },
    {
      "name": "Dark Garnet",
      "hex_code": "
                            
                            #6D2C2C
                        "
    }
  ]
}

This palette transitions from the bright, lively tones of grenadine through warmer coral reds to the rich and deep hues of garnet, creating a bold and expressive color scheme.

What kind of project or design are you considering using this color palette for?