Here’s the updated color palette with two additional colors for Text/Background Dark and Text/Background Light that complement the existing colors:

json
{
  "palette_name": "Excel Pastel Theme with Text and Background Colors",
  "colors": [
    {
      "name": "Pastel Blue",
      "hex_code": "
                            
                            #A4C8E1
                        "
    },
    {
      "name": "Pastel Green",
      "hex_code": "
                            
                            #A4D7A1
                        "
    },
    {
      "name": "Pastel Yellow",
      "hex_code": "
                            
                            #F6E3B4
                        "
    },
    {
      "name": "Pastel Brown",
      "hex_code": "
                            
                            #D2B48C
                        "
    },
    {
      "name": "Dark Cornsilk",
      "hex_code": "
                            
                            #EEDC9D
                        "
    },
    {
      "name": "Hyperlink Blue",
      "hex_code": "
                            
                            #0E76A8
                        "
    },
    {
      "name": "Visited Hyperlink Purple",
      "hex_code": "
                            
                            #6F2C91
                        "
    },
    {
      "name": "Text/Background Dark",
      "hex_code": "
                            
                            #4B3C2A
                        "
    },
    {
      "name": "Text/Background Light",
      "hex_code": "
                            
                            #FAF3E0
                        "
    }
  ]
}

In this palette, “Text/Background Dark” is a rich brown shade, while “Text/Background Light” is a soft beige that will harmonize well with the other pastel colors.

Would you like to make any more changes or need further assistance?