Here is the updated color palette based on your request to change “Shadow Black” to “Dark Blue” while maintaining the overall theme of “Ryomen Sukuna”:

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": "Dark Blue",
      "hex_code": "
          
          #00008B
       "
    }
  ]
}

Palette Description:

The updated palette retains the intense and dark aesthetic of Ryomen Sukuna while introducing a new deep blue shade that complements the existing colors. The combination of Cursed Red, Dark Charcoal, Royal Purple, and Bone White with the new Dark Blue maintains a strong, mysterious theme, perfect for a character as complex as Sukuna.

Would you like to make any additional changes or need help with something else?