Here is the updated color palette with Light Gray replacing Sienna:

json
{
  "palette_name": "Coffee and Soft Teal",
  "colors": [
    {
      "name": "Coffee Brown",
      "hex_code": "
          
          #6F4E37
       "
    },
    {
      "name": "Light Gray",
      "hex_code": "
          
          #D3D3D3
       "
    },
    {
      "name": "Soft Teal",
      "hex_code": "
          
          #4B8B8B
       "
    },
    {
      "name": "Tan",
      "hex_code": "
          
          #D2B48C
       "
    }
  ]
}

Palette Description:

The palette remains “Coffee and Soft Teal,” now featuring Light Gray in place of Sienna. The addition of Light Gray provides a fresh, airy feel that contrasts beautifully with the rich Coffee Brown and pairs well with the muted Soft Teal. Tan continues to add warmth, resulting in a balanced, contemporary palette that is both soothing and elegant.

Would you like to continue refining this palette or try something entirely different?