Based on the colors you provided, I have created an expanded color palette that maintains a cohesive look while adding some complementary and contrasting colors.

json
{
  "palette_name": "Expanded Nature Palette",
  "colors": [
    {
      "name": "Light Gray",
      "hex_code": "
          
          #F0F0F0
       "
    },
    {
      "name": "Dark Gray",
      "hex_code": "
          
          #606060
       "
    },
    {
      "name": "Teal",
      "hex_code": "
          
          #009060
       "
    },
    {
      "name": "Lime Green",
      "hex_code": "
          
          #60C030
       "
    },
    {
      "name": "Forest Green",
      "hex_code": "
          
          #006030
       "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Sunset Orange",
      "hex_code": "
          
          #FF4500
       "
    },
    {
      "name": "Earth Brown",
      "hex_code": "
          
          #8B4513
       "
    }
  ]
}

This palette is inspired by natural elements, incorporating shades of gray, green, and adding blue, orange, and brown to create a balanced and vibrant look.

Would you like to see more shades or variations, or do you have specific themes in mind for this palette?