Based on your query for a color palette featuring “negro primario” (primary black) and “rojo secundario” (secondary red), here is a suggested color palette:

json
{
  "palette_name": "Black and Red",
  "colors": [
    {
      "name": "Primary Black",
      "hex_code": "
          
          #000000
       "
    },
    {
      "name": "Secondary Red",
      "hex_code": "
          
          #FF0000
       "
    },
    {
      "name": "Dark Red",
      "hex_code": "
          
          #8B0000
       "
    },
    {
      "name": "Charcoal",
      "hex_code": "
          
          #333333
       "
    },
    {
      "name": "Crimson",
      "hex_code": "
          
          #DC143C
       "
    }
  ]
}

This color palette features a strong contrast between black and red, with additional shades of dark red and charcoal to provide depth and variation.

Would you like to explore more colors or perhaps different combinations?