Here’s a color palette designed for a luxury nonprofit luncheon event, incorporating a dark purple as requested:

json
{
  "palette_name": "Elegant Luncheon",
  "colors": [
    {
      "name": "Dark Purple",
      "hex_code": "
                            
                            #5C4B8A
                        "
    },
    {
      "name": "Gold",
      "hex_code": "
                            
                            #D4AF37
                        "
    },
    {
      "name": "Cream",
      "hex_code": "
                            
                            #F5F5DC
                        "
    },
    {
      "name": "Charcoal Gray",
      "hex_code": "
                            
                            #333333
                        "
    },
    {
      "name": "Soft Blush",
      "hex_code": "
                            
                            #F2C6D4
                        "
    }
  ]
}

This palette combines the richness of dark purple with the elegance of gold and the softness of cream and blush, complemented by a deep charcoal gray for a sophisticated touch.

Would you like to explore more color options or any particular elements for your event?