Here is a color palette based on the colors you provided:

json
{
  "palette_name": "Vibrant Contrast",
  "colors": [
    {
      "name": "Charcoal",
      "hex_code": "
                            
                            #36454f
                        "
    },
    {
      "name": "Crimson Red",
      "hex_code": "
                            
                            #ef5454
                        "
    },
    {
      "name": "Lavender",
      "hex_code": "
                            
                            #856cf7
                        "
    },
    {
      "name": "Turquoise",
      "hex_code": "
                            
                            #25ccb4
                        "
    },
    {
      "name": "Sunshine Yellow",
      "hex_code": "
                            
                            #ffcc00
                        "
    }
  ]
}

This palette combines deep, rich tones with vibrant colors for a striking contrast. It features a dark charcoal base, bright crimson and turquoise accents, with lavender and sunshine yellow to add a playful touch.

What do you plan to use this color palette for?