Here is a monochromatic color palette based on shades of blue:

json
{
  "palette_name": "Shades of Blue",
  "colors": [
    {
      "name": "Light Blue",
      "hex_code": "
          
          #ADD8E6
       "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #87CEEB
       "
    },
    {
      "name": "Dodger Blue",
      "hex_code": "
          
          #1E90FF
       "
    },
    {
      "name": "Medium Blue",
      "hex_code": "
          
          #0000CD
       "
    },
    {
      "name": "Dark Blue",
      "hex_code": "
          
          #00008B
       "
    }
  ]
}

This palette features a range of blue shades, from light to dark, creating a harmonious monochromatic scheme. Would you like to explore another color palette or need assistance with something else?