Here’s the updated rainbow color palette with a darker green instead of lime green:

json
{
  "palette_name": "Rainbow Spectrum with Dark Green",
  "colors": [
    {
      "name": "Vivid Red",
      "hex_code": "
                            
                            #FF0000
                        "
    },
    {
      "name": "Bright Orange",
      "hex_code": "
                            
                            #FF7F00
                        "
    },
    {
      "name": "Sunny Yellow",
      "hex_code": "
                            
                            #FFFF00
                        "
    },
    {
      "name": "Dark Green",
      "hex_code": "
                            
                            #006400
                        "
    },
    {
      "name": "Bright Blue",
      "hex_code": "
                            
                            #0000FF
                        "
    },
    {
      "name": "Vivid Indigo",
      "hex_code": "
                            
                            #4B0082
                        "
    },
    {
      "name": "Violet",
      "hex_code": "
                            
                            #9400D3
                        "
    }
  ]
}

This palette maintains the vibrant rainbow theme while incorporating a darker green for a more grounded look.

Would you like to see more variations or need help with anything else?