Here’s a vibrant 70s rainbow color palette that features 8 colors with high contrast against a black background:

json
{
  "palette_name": "70s Rainbow",
  "colors": [
    {
      "name": "Crimson Red",
      "hex_code": "
          
          #C72C41
       "
    },
    {
      "name": "Bright Orange",
      "hex_code": "
          
          #FF6F20
       "
    },
    {
      "name": "Golden Yellow",
      "hex_code": "
          
          #FFC300
       "
    },
    {
      "name": "Lime Green",
      "hex_code": "
          
          #A8D600
       "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #00BFFF
       "
    },
    {
      "name": "Electric Blue",
      "hex_code": "
          
          #007FFF
       "
    },
    {
      "name": "Violet Purple",
      "hex_code": "
          
          #6A0DAD
       "
    },
    {
      "name": "Magenta Pink",
      "hex_code": "
          
          #FF007F
       "
    }
  ]
}

This color palette captures the essence of the 70s with bright and contrasting colors, perfect for visibility on a black background.

What kind of project are you planning to use this palette for?