Great! To ensure that all colors in the palette can pair well with a white foreground font, I’ve adjusted the colors to be darker or more vibrant, providing sufficient contrast. Here’s the updated palette:

json
{
  "palette_name": "Contrasting Excel Theme with White Foreground",
  "colors": [
    {
      "name": "Vibrant Red",
      "hex_code": "
                            
                            #C8102E
                        "
    },
    {
      "name": "Deep Blue",
      "hex_code": "
                            
                            #00253E
                        "
    },
    {
      "name": "Royal Purple",
      "hex_code": "
                            
                            #5E4B8A
                        "
    },
    {
      "name": "Dark Orange",
      "hex_code": "
                            
                            #C75B18
                        "
    },
    {
      "name": "Forest Green",
      "hex_code": "
                            
                            #2E6F3E
                        "
    },
    {
      "name": "Fuchsia",
      "hex_code": "
                            
                            #C71585
                        "
    }
  ]
}

Palette Description:

This palette includes a range of dark and vibrant colors that work well with a white foreground font. Each color is chosen to maintain high contrast and readability:

• Vibrant Red: Stands out boldly.
• Deep Blue: Provides a strong, professional tone.
• Royal Purple: Adds a touch of elegance with sufficient darkness.
• Dark Orange: Offers warmth while remaining readable.
• Forest Green: A rich green that is easy to read against white text.
• Fuchsia: A vibrant contrast that adds a pop of color.

Would you like to explore how to apply this updated palette in Excel, or do you have any other requests?