Here is a color palette designed to be ADHD-friendly with a calm blue theme:

json
{
  "palette_name": "Calm Blue Serenity",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Powder Blue",
      "hex_code": "
          
          #B0E0E6
       "
    },
    {
      "name": "Light Steel Blue",
      "hex_code": "
          
          #B0C4DE
       "
    },
    {
      "name": "Alice Blue",
      "hex_code": "
          
          #F0F8FF
       "
    },
    {
      "name": "Deep Sky Blue",
      "hex_code": "
          
          #00BFFF
       "
    }
  ]
}

This palette features soft and soothing shades of blue that promote calmness and focus, making it suitable for environments designed for individuals with ADHD.

Would you like suggestions on where to use this palette, or do you have any other preferences in mind?