Here is the updated color palette with pale yellow and pale orange removed, and a pop color added:

{
  "palette_name": "Earthy Warmth with a Pop",
  "colors": [
    {
      "name": "Warm Beige",
      "hex_code": "
                            
                            #E6D5C3
                        "
    },
    {
      "name": "Cocoa Brown",
      "hex_code": "
                            
                            #8B5E3C
                        "
    },
    {
      "name": "Sage Green",
      "hex_code": "
                            
                            #A6B17E
                        "
    },
    {
      "name": "Emerald Green",
      "hex_code": "
                            
                            #137A5F
                        "
    },
    {
      "name": "Berry Pink",
      "hex_code": "
                            
                            #D6396D
                        "
    },
    {
      "name": "Dusty Rose",
      "hex_code": "
                            
                            #D8A39E
                        "
    },
    {
      "name": "Vibrant Teal",
      "hex_code": "
                            
                            #008080
                        "
    }
  ]
}

In this palette, I’ve added a vibrant teal as the pop color, which will add a striking contrast to the warm earth tones. If you have any further adjustments or requests, feel free to let me know!