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

json
{
  "palette_name": "Muted Excel Color Scheme",
  "colors": [
    {
      "name": "Muted Red",
      "hex_code": "
                            
                            #C75B5B
                        "
    },
    {
      "name": "Muted Green",
      "hex_code": "
                            
                            #A8CBA0
                        "
    },
    {
      "name": "Muted Yellow",
      "hex_code": "
                            
                            #D1C6A5
                        "
    },
    {
      "name": "Muted Orange",
      "hex_code": "
                            
                            #D59A6D
                        "
    },
    {
      "name": "Muted Purple",
      "hex_code": "
                            
                            #A77BCA
                        "
    },
    {
      "name": "Muted Brown",
      "hex_code": "
                            
                            #BFA6A0
                        "
    },
    {
      "name": "Muted Gray",
      "hex_code": "
                            
                            #B0B0B0
                        "
    },
    {
      "name": "Muted Black",
      "hex_code": "
                            
                            #545454
                        "
    }
  ]
}

This muted color scheme offers a softer and more subdued aesthetic while maintaining the required colors.

Would you like to see any other variations or additional information on how to apply these colors in Excel?