Based on your query, here is a color palette that reflects a professional and modern aesthetic suitable for a promotional offer:

json
{
  "palette_name": "Modern Promotion",
  "colors": [
    {
      "name": "Deep Blue",
      "hex_code": "
                            
                            #003f5c
                        "
    },
    {
      "name": "Vibrant Cyan",
      "hex_code": "
                            
                            #7a5195
                        "
    },
    {
      "name": "Bright Coral",
      "hex_code": "
                            
                            #f9c74f
                        "
    },
    {
      "name": "Soft Gray",
      "hex_code": "
                            
                            #f1f1f1
                        "
    },
    {
      "name": "Dark Charcoal",
      "hex_code": "
                            
                            #333333
                        "
    }
  ]
}

Palette Description:

The “Modern Promotion” palette combines deep, professional tones with vibrant accents that convey trust, creativity, and energy. Deep Blue establishes a solid foundation, while Vibrant Cyan and Bright Coral add a pop of color to attract attention. Soft Gray provides a clean background, and Dark Charcoal adds depth and contrast.

Would you like to see more color options or information on how to use this palette effectively?