Here is a pastel color palette consisting of 6 basic colors, each with 3 tones, making a total of 18 colors:

json
{
  "palette_name": "Pastel Colors Palette",
  "colors": [
    {
      "name": "Pastel Pink Light",
      "hex_code": "
          
          #FFB3C1
       "
    },
    {
      "name": "Pastel Pink Medium",
      "hex_code": "
          
          #FF6F91
       "
    },
    {
      "name": "Pastel Pink Dark",
      "hex_code": "
          
          #FF4C81
       "
    },
    {
      "name": "Pastel Blue Light",
      "hex_code": "
          
          #A7C6ED
       "
    },
    {
      "name": "Pastel Blue Medium",
      "hex_code": "
          
          #5B9BD5
       "
    },
    {
      "name": "Pastel Blue Dark",
      "hex_code": "
          
          #3B7A9A
       "
    },
    {
      "name": "Pastel Green Light",
      "hex_code": "
          
          #B2E0B2
       "
    },
    {
      "name": "Pastel Green Medium",
      "hex_code": "
          
          #7BCC7B
       "
    },
    {
      "name": "Pastel Green Dark",
      "hex_code": "
          
          #5DAA5D
       "
    },
    {
      "name": "Pastel Yellow Light",
      "hex_code": "
          
          #FFF5B3
       "
    },
    {
      "name": "Pastel Yellow Medium",
      "hex_code": "
          
          #FFE86E
       "
    },
    {
      "name": "Pastel Yellow Dark",
      "hex_code": "
          
          #FFD54F
       "
    },
    {
      "name": "Pastel Lavender Light",
      "hex_code": "
          
          #E8D1F2
       "
    },
    {
      "name": "Pastel Lavender Medium",
      "hex_code": "
          
          #D1A6E8
       "
    },
    {
      "name": "Pastel Lavender Dark",
      "hex_code": "
          
          #B67BE3
       "
    },
    {
      "name": "Pastel Orange Light",
      "hex_code": "
          
          #FFCCB3
       "
    },
    {
      "name": "Pastel Orange Medium",
      "hex_code": "
          
          #FF9A6E
       "
    },
    {
      "name": "Pastel Orange Dark",
      "hex_code": "
          
          #FF7E3A
       "
    }
  ]
}

This color palette features soft and soothing pastel shades that are perfect for Excel presentations and designs. Would you like suggestions on how to use these colors in your Excel sheets?