Here is a color palette designed specifically for Excel, featuring 8 colors, including red and green, while excluding blue:

json
{
  "palette_name": "Excel Color Scheme",
  "colors": [
    {
      "name": "Red",
      "hex_code": "
                            
                            #FF0000
                        "
    },
    {
      "name": "Green",
      "hex_code": "
                            
                            #00FF00
                        "
    },
    {
      "name": "Yellow",
      "hex_code": "
                            
                            #FFFF00
                        "
    },
    {
      "name": "Orange",
      "hex_code": "
                            
                            #FFA500
                        "
    },
    {
      "name": "Purple",
      "hex_code": "
                            
                            #800080
                        "
    },
    {
      "name": "Brown",
      "hex_code": "
                            
                            #8B4513
                        "
    },
    {
      "name": "Gray",
      "hex_code": "
                            
                            #808080
                        "
    },
    {
      "name": "Black",
      "hex_code": "
                            
                            #000000
                        "
    }
  ]
}

This palette provides a vibrant and contrasting color scheme suitable for Excel, allowing for clear data visualization without the use of blue.

Would you like any adjustments to this palette or additional colors?