Here is a color palette that provides AAA contrast against the colors #222222 (dark gray) and #FEFEFE (almost white).

json
{
  "palette_name": "High Contrast Colors",
  "colors": [
    {
      "name": "Crimson Red",
      "hex_code": "
          
          #DC143C
       "
    },
    {
      "name": "Royal Blue",
      "hex_code": "
          
          #4169E1
       "
    },
    {
      "name": "Medium Sea Green",
      "hex_code": "
          
          #3CB371
       "
    },
    {
      "name": "Dark Orange",
      "hex_code": "
          
          #FF8C00
       "
    },
    {
      "name": "Deep Pink",
      "hex_code": "
          
          #FF1493
       "
    },
    {
      "name": "Slate Blue",
      "hex_code": "
          
          #6A5ACD
       "
    },
    {
      "name": "Gold",
      "hex_code": "
          
          #FFD700
       "
    },
    {
      "name": "Dark Violet",
      "hex_code": "
          
          #9400D3
       "
    },
    {
      "name": "Turquoise",
      "hex_code": "
          
          #40E0D0
       "
    },
    {
      "name": "Tomato",
      "hex_code": "
          
          #FF6347
       "
    },
    {
      "name": "Lime Green",
      "hex_code": "
          
          #32CD32
       "
    }
  ]
}

This palette includes a variety of vibrant colors that maintain high contrast against both #222222 and #FEFEFE , ensuring readability and visual appeal.

Do you have specific applications in mind for these colors, or would you like to adjust the palette in any way?