Here’s an updated color palette inspired by the Koi Fish theme while incorporating a more vibrant and engaging feel, suitable for your request:

json
{
  "palette_name": "Koi Fish Revamped",
  "colors": [
    {
      "name": "Sunset Coral",
      "hex_code": "
                            
                            #FF6F61
                        "
    },
    {
      "name": "Ocean Depths",
      "hex_code": "
                            
                            #005B99
                        "
    },
    {
      "name": "Golden Sunrise",
      "hex_code": "
                            
                            #FFCC00
                        "
    },
    {
      "name": "Emerald Glow",
      "hex_code": "
                            
                            #009B77
                        "
    },
    {
      "name": "Luminous Pearl",
      "hex_code": "
                            
                            #FFFFFF
                        "
    }
  ]
}

Palette Description:

This updated palette maintains the vibrant essence of the original Koi Fish theme, with a focus on warm coral tones and rich blues. The inclusion of a brighter gold and a deeper emerald green brings a fresh, engaging look. The luminous white pearl remains to provide balance and clarity.

Would you like any further adjustments or additional colors?