Based on your preferences for neon and pastel colors that work well on both light and dark backgrounds and in grayscale, here’s a color palette designed for use as accent colors in Excel files:

json
{
  "palette_name": "Neon Pastel Accent",
  "colors": [
    {
      "name": "Neon Pink",
      "hex_code": "
          
          #FF6F91
       "
    },
    {
      "name": "Pastel Blue",
      "hex_code": "
          
          #A0D8E5
       "
    },
    {
      "name": "Neon Green",
      "hex_code": "
          
          #39FF14
       "
    },
    {
      "name": "Pastel Yellow",
      "hex_code": "
          
          #F7EA00
       "
    },
    {
      "name": "Neon Purple",
      "hex_code": "
          
          #8A00B3
       "
    },
    {
      "name": "Pastel Lavender",
      "hex_code": "
          
          #E6C9E2
       "
    }
  ]
}

Palette Description:

The “Neon Pastel Accent” palette features vibrant neon colors complemented by softer pastel shades. This combination ensures that your accents stand out against both light and dark backgrounds, while also providing a harmonious look in grayscale. The primary font colors of black or white will work beautifully with these hues, making your Excel files visually appealing and easy to read.

Would you like to explore more color options or variations for specific uses?