Here is a color palette based on your specifications for a GHW Fandom wiki light mode:

json
{
  "palette_name": "GHW Fandom Wiki Light Mode",
  "colors": [
    {
      "name": "Article Background",
      "hex_code": "
          
          #E8F0FE
       "
    },
    {
      "name": "Accent",
      "hex_code": "
          
          #A982FF
       "
    },
    {
      "name": "Sticky Nav",
      "hex_code": "
          
          #D4E1FA
       "
    },
    {
      "name": "Link",
      "hex_code": "
          
          #673AB7
       "
    },
    {
      "name": "Community Background",
      "hex_code": "
          
          #F3E5F5
       "
    },
    {
      "name": "Community Text",
      "hex_code": "
          
          #303F9F
       "
    },
    {
      "name": "Community Header",
      "hex_code": "
          
          #9575CD
       "
    }
  ]
}

This palette features a soft and inviting color scheme perfect for a light mode interface, combining gentle blues and purples to create a pleasant reading experience.

Would you like any additional colors or further customization for the palette?