Here is the color palette based on the provided hex codes:

json
{
  "palette_name": "Cool Blue Gradient",
  "colors": [
    {
      "name": "Light Sky Blue 50",
      "hex_code": "
          
          #E8F5FF
       "
    },
    {
      "name": "Sky Blue 100",
      "hex_code": "
          
          #D6EDFF
       "
    },
    {
      "name": "Light Blue 200",
      "hex_code": "
          
          #A8D4FF
       "
    },
    {
      "name": "Blue 300",
      "hex_code": "
          
          #7ABFFF
       "
    },
    {
      "name": "Bright Blue 400",
      "hex_code": "
          
          #51ACFF
       "
    },
    {
      "name": "Vibrant Blue 500",
      "hex_code": "
          
          #2994FC
       "
    },
    {
      "name": "Deep Blue 600",
      "hex_code": "
          
          #117EDB
       "
    },
    {
      "name": "Dark Blue 700",
      "hex_code": "
          
          #0C63AD
       "
    },
    {
      "name": "Navy Blue 800",
      "hex_code": "
          
          #08497F
       "
    },
    {
      "name": "Midnight Blue 900",
      "hex_code": "
          
          #042F52
       "
    }
  ]
}

This palette features a range of blue shades, transitioning from very light to deep navy tones, perfect for creating a serene and cool atmosphere. Do you have any specific applications in mind for this palette, or would you like to explore variations?