Here’s the updated color palette with “Shadow Black” replaced by your requested color, #EC407A , while keeping the overall theme intact.

json
{
  "palette_name": "Ryomen Sukuna Updated",
  "colors": [
    {
      "name": "Cursed Red",
      "hex_code": "
          
          #A00000
       "
    },
    {
      "name": "Dark Charcoal",
      "hex_code": "
          
          #333333
       "
    },
    {
      "name": "Royal Purple",
      "hex_code": "
          
          #5E2B7E
       "
    },
    {
      "name": "Bone White",
      "hex_code": "
          
          #F8F8F0
       "
    },
    {
      "name": "Vibrant Pink",
      "hex_code": "
          
          #EC407A
       "
    },
    {
      "name": "Deep Night Blue",
      "hex_code": "
          
          #07163D
       "
    }
  ]
}

Palette Description:

The “Ryomen Sukuna Updated” palette now features “Vibrant Pink” ( #EC407A ) in place of “Shadow Black,” introducing a striking contrast that enhances the overall vibrancy and energy of the palette while still maintaining its dark, mystical aesthetic.

Would you like any further modifications or additional colors?