Let’s choose a less saturated and softer blueish-green color. A good option could be “Muted Teal” or “Soft Aqua.”

Here’s the updated palette with “Muted Teal”:

1. Soft Blush - #E1D3D0
2. Cool Mint - #A6D3D4
3. Muted Teal - #A0D5D2 (new color)
4. Deep Teal - #008C8D
5. Dark Forest - #005A5A
6. Mysterious Pine - #003D3B

Here’s the revised JSON for the updated palette:

json
{
  "palette_name": "Serene Earth Tones",
  "colors": [
    {
      "name": "Soft Blush",
      "hex_code": "
                            
                            #E1D3D0
                        "
    },
    {
      "name": "Cool Mint",
      "hex_code": "
                            
                            #A6D3D4
                        "
    },
    {
      "name": "Muted Teal",
      "hex_code": "
                            
                            #A0D5D2
                        "
    },
    {
      "name": "Deep Teal",
      "hex_code": "
                            
                            #008C8D
                        "
    },
    {
      "name": "Dark Forest",
      "hex_code": "
                            
                            #005A5A
                        "
    },
    {
      "name": "Mysterious Pine",
      "hex_code": "
                            
                            #003D3B
                        "
    }
  ]
}

“Muted Teal” presents a softer, less saturated option that still fits nicely within your palette. Would you like any further assistance with your mural design or other creative ideas?