Here is a color palette based on your query, with an additional darker color included:

json
{
  "palette_name": "Blush and Sage",
  "colors": [
    {
      "name": "Dusty Rose",
      "hex_code": "
          
          #a46181
       "
    },
    {
      "name": "Soft Pink",
      "hex_code": "
          
          #D3789c
       "
    },
    {
      "name": "Lavender Blush",
      "hex_code": "
          
          #e3b4d3
       "
    },
    {
      "name": "Pale Sage",
      "hex_code": "
          
          #9ebeab
       "
    },
    {
      "name": "Muted Sage",
      "hex_code": "
          
          #5c9979
       "
    },
    {
      "name": "Slate Gray",
      "hex_code": "
          
          #66625f
       "
    },
    {
      "name": "Dark Olive Green",
      "hex_code": "
          
          #4A5D3D
       "
    }
  ]
}

This palette features a mix of soft pinks and greens, complemented by a deeper dark olive green to add contrast and depth.

Would you like to explore more color combinations or adjustments to this palette?