Here is the color palette based on your query:

json
{
  "palette_name": "GHW Fandom Wiki Light Mode",
  "colors": [
    {
      "name": "Lavender",
      "hex_code": "
          
          #D5A3FF
       "
    },
    {
      "name": "Sapphire Blue",
      "hex_code": "
          
          #1F4AA7
       "
    },
    {
      "name": "Aquamarine",
      "hex_code": "
          
          #82D4D2
       "
    },
    {
      "name": "Royal Blue",
      "hex_code": "
          
          #3078C9
       "
    },
    {
      "name": "Teal",
      "hex_code": "
          
          #2EB5B5
       "
    },
    {
      "name": "Cobalt Blue",
      "hex_code": "
          
          #3B5FC1
       "
    },
    {
      "name": "Pastel Yellow",
      "hex_code": "
          
          #FFEB99
       "
    }
  ]
}

This palette captures a vibrant and refreshing aesthetic suitable for a light mode theme, combining soft pastels with bold blues to create a visually engaging experience.

Do you have any specific applications in mind for this palette, or would you like to explore more color options?