Here is a color palette that includes the color 3C303E and two complementary colors:

json
{
  "palette_name": "Moody Elegance",
  "colors": [
    {
      "name": "Dark Charcoal",
      "hex_code": "
          
          #3C303E
       "
    },
    {
      "name": "Dusty Rose",
      "hex_code": "
          
          #D6A6B0
       "
    },
    {
      "name": "Soft Gold",
      "hex_code": "
          
          #E8CBA0
       "
    }
  ]
}

Palette Description:
The “Moody Elegance” palette features Dark Charcoal as a rich, deep base that sets a sophisticated tone. Dusty Rose adds a soft and romantic touch, while Soft Gold brings a hint of warmth and luxury, creating a well-balanced and elegant combination.

Would you like to explore different themes with this palette, or do you have any specific projects in mind?