Here is a color palette based on your request for “чёрно синий” (black and blue):

json
{
  "palette_name": "Black and Blue Harmony",
  "colors": [
    {
      "name": "Deep Black",
      "hex_code": "
                            
                            #000000
                        "
    },
    {
      "name": "Midnight Blue",
      "hex_code": "
                            
                            #191970
                        "
    },
    {
      "name": "Electric Blue",
      "hex_code": "
                            
                            #00FFFF
                        "
    },
    {
      "name": "Navy Blue",
      "hex_code": "
                            
                            #000080
                        "
    },
    {
      "name": "Slate Blue",
      "hex_code": "
                            
                            #6A5ACD
                        "
    }
  ]
}

This palette features a combination of deep black tones and various shades of blue, creating a striking contrast and a sense of elegance.

Would you like to explore more color combinations or use this palette for a specific design project?