Here is an extended color palette inspired by the original “Greyhound” theme, incorporating additional complementary colors:

json
{
  "palette_name": "Extended Greyhound Inspired Palette",
  "colors": [
    {
      "name": "Soft Grey",
      "hex_code": "
                            
                            #B7B3B1
                        "
    },
    {
      "name": "Charcoal",
      "hex_code": "
                            
                            #4E5452
                        "
    },
    {
      "name": "Warm Taupe",
      "hex_code": "
                            
                            #C4B6A6
                        "
    },
    {
      "name": "Pale Ash",
      "hex_code": "
                            
                            #D9D2CC
                        "
    },
    {
      "name": "Deep Slate",
      "hex_code": "
                            
                            #3B3D3F
                        "
    },
    {
      "name": "Mist Grey",
      "hex_code": "
                            
                            #E2E1E0
                        "
    },
    {
      "name": "Slate Blue",
      "hex_code": "
                            
                            #6A7B9D
                        "
    },
    {
      "name": "Cinder",
      "hex_code": "
                            
                            #7E7B7A
                        "
    },
    {
      "name": "Dusty Lavender",
      "hex_code": "
                            
                            #AFA5B9
                        "
    },
    {
      "name": "Midnight Green",
      "hex_code": "
                            
                            #2C3E50
                        "
    }
  ]
}

This extended palette maintains the elegant and subdued tones of the original while introducing a few new shades that can complement the existing colors beautifully.

Would you like assistance with how to use these colors or any specific projects in mind?