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

json
{
  "palette_name": "Shades of Blue",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
                            
                            #87CEEB
                        "
    },
    {
      "name": "Dodger Blue",
      "hex_code": "
                            
                            #1E90FF
                        "
    },
    {
      "name": "Royal Blue",
      "hex_code": "
                            
                            #4169E1
                        "
    },
    {
      "name": "Medium Blue",
      "hex_code": "
                            
                            #0000CD
                        "
    },
    {
      "name": "Steel Blue",
      "hex_code": "
                            
                            #4682B4
                        "
    },
    {
      "name": "Light Steel Blue",
      "hex_code": "
                            
                            #B0C4DE
                        "
    },
    {
      "name": "Slate Blue",
      "hex_code": "
                            
                            #6A5ACD
                        "
    },
    {
      "name": "Dark Blue",
      "hex_code": "
                            
                            #00008B
                        "
    },
    {
      "name": "Light Blue",
      "hex_code": "
                            
                            #ADD8E6
                        "
    }
  ]
}

This palette includes a variety of blue shades, ranging from light to dark, perfect for creating calm and serene designs. Do you have a specific use case in mind for this palette, or would you like to explore other color themes?