Here’s a 1970s rainbow gradient color palette that works well on a black background:

json
{
  "palette_name": "1970s Rainbow Gradient",
  "colors": [
    {
      "name": "Bright Red",
      "hex_code": "
          
          #FF5733
       "
    },
    {
      "name": "Orange",
      "hex_code": "
          
          #FF8D00
       "
    },
    {
      "name": "Golden Yellow",
      "hex_code": "
          
          #FFC300
       "
    },
    {
      "name": "Lime Green",
      "hex_code": "
          
          #A4D65E
       "
    },
    {
      "name": "Cyan",
      "hex_code": "
          
          #00BFFF
       "
    },
    {
      "name": "Electric Blue",
      "hex_code": "
          
          #007BFF
       "
    },
    {
      "name": "Magenta",
      "hex_code": "
          
          #FF007F
       "
    },
    {
      "name": "Violet",
      "hex_code": "
          
          #8A2BE2
       "
    }
  ]
}

This palette captures the vibrant and bold colors characteristic of the 1970s, making it perfect for a logo that needs to stand out against a black background.

Would you like to see some design ideas or examples of how to use this palette in your logo?