Here’s a refined muted color palette that retains dusty blue and soft moss, while introducing darker shades of those colors:

json
{
  "palette_name": "Darkened Dusty Blue and Soft Moss",
  "colors": [
    {
      "name": "Dark Dusty Blue",
      "hex_code": "
                            
                            #7A9DA0
                        "
    },
    {
      "name": "Dark Soft Moss",
      "hex_code": "
                            
                            #8C9B8D
                        "
    },
    {
      "name": "Charcoal Blue",
      "hex_code": "
                            
                            #4B657D
                        "
    },
    {
      "name": "Deep Forest Green",
      "hex_code": "
                            
                            #4F6F61
                        "
    },
    {
      "name": "Slate Green",
      "hex_code": "
                            
                            #586B5E
                        "
    }
  ]
}

This palette features darker versions of dusty blue and soft moss, complemented by charcoal blue, deep forest green, and slate green for added depth and richness.

Would you like any further modifications or additional colors to explore?