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?