Here’s an updated color palette based on your request. I’ve added two different greens and two different blues while avoiding pink, and ensured the overall pastel theme is maintained.

json
{
  "palette_name": "Updated Pastel Light Colors for Excel",
  "colors": [
    {
      "name": "Soft Blue",
      "hex_code": "
          
          #7FB3D5
       "
    },
    {
      "name": "Pastel Sky Blue",
      "hex_code": "
          
          #A4D8E1
       "
    },
    {
      "name": "Mint Green",
      "hex_code": "
          
          #4DD6B9
       "
    },
    {
      "name": "Pastel Green",
      "hex_code": "
          
          #A8E6CE
       "
    },
    {
      "name": "Light Yellow",
      "hex_code": "
          
          #E5C200
       "
    },
    {
      "name": "Peach",
      "hex_code": "
          
          #F1A100
       "
    },
    {
      "name": "Light Aqua",
      "hex_code": "
          
          #76D7C4
       "
    }
  ]
}

This updated palette maintains a soft and light aesthetic while including the requested variety. Would you like to make further adjustments or add any specific colors?