Here is a color palette inspired by the 1970s rainbow, featuring 8 colors sorted by hue that will look great on a black background and ends in pink:

json
{
  "palette_name": "1970s Rainbow",
  "colors": [
    {
      "name": "Red",
      "hex_code": "
          
          #FF3D00
       "
    },
    {
      "name": "Orange",
      "hex_code": "
          
          #FF6F00
       "
    },
    {
      "name": "Yellow",
      "hex_code": "
          
          #FFD600
       "
    },
    {
      "name": "Green",
      "hex_code": "
          
          #76FF03
       "
    },
    {
      "name": "Cyan",
      "hex_code": "
          
          #00B0FF
       "
    },
    {
      "name": "Blue",
      "hex_code": "
          
          #2979FF
       "
    },
    {
      "name": "Indigo",
      "hex_code": "
          
          #3D5AFE
       "
    },
    {
      "name": "Pink",
      "hex_code": "
          
          #D5006D
       "
    }
  ]
}

This palette captures the vibrant and playful essence of the 1970s, with bold colors that stand out against a black background.

Would you like any additional variations or suggestions for using this palette?