Here is the adjusted color palette with a darker shade of Gray:

json
{
  "palette_name": "Coffee and Soft Teal",
  "colors": [
    {
      "name": "Coffee Brown",
      "hex_code": "
                            
                            #6F4E37
                        "
    },
    {
      "name": "Dark Gray",
      "hex_code": "
                            
                            #A9A9A9
                        "
    },
    {
      "name": "Soft Teal",
      "hex_code": "
                            
                            #4B8B8B
                        "
    },
    {
      "name": "Tan",
      "hex_code": "
                            
                            #D2B48C
                        "
    }
  ]
}

Palette Description:

The palette “Coffee and Soft Teal” has been updated to include Dark Gray instead of Light Gray. This darker tone adds depth and sophistication to the palette, creating a striking contrast with the rich Coffee Brown and the muted Soft Teal. The Tan color maintains its warm presence, rounding out a palette that is both modern and balanced.

Would you like to explore more options or make additional changes?