Here’s a vibrant retro rainbow color palette that’s designed to stand out against a black background:

json
{
  "palette_name": "Retro Rainbow",
  "colors": [
    {
      "name": "Electric Red",
      "hex_code": "
          
          #FF4136
       "
    },
    {
      "name": "Bright Orange",
      "hex_code": "
          
          #FF851B
       "
    },
    {
      "name": "Sunshine Yellow",
      "hex_code": "
          
          #FFEA00
       "
    },
    {
      "name": "Lime Green",
      "hex_code": "
          
          #2ECC40
       "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #0074D9
       "
    },
    {
      "name": "Royal Purple",
      "hex_code": "
          
          #B10DC9
       "
    },
    {
      "name": "Hot Pink",
      "hex_code": "
          
          #FF4136
       "
    },
    {
      "name": "Neon Blue",
      "hex_code": "
          
          #39CCCC
       "
    }
  ]
}

This palette features bold and bright colors that pop beautifully when placed on a black background, giving off a retro vibe.

Would you like to explore specific applications for this palette, or do you have any other color themes in mind?