Here’s a color palette based on your provided hex codes to create a premium look for your weather app:

json
{
  "palette_name": "Premium Weather App",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #648AAD
       "
    },
    {
      "name": "Ocean Teal",
      "hex_code": "
          
          #8DB8C7
       "
    },
    {
      "name": "Sunshine Yellow",
      "hex_code": "
          
          #FFCD00
       "
    }
  ]
}

This palette combines a soothing sky blue with a refreshing ocean teal and a vibrant sunshine yellow, giving your app a bright yet elegant look.

Would you like to know how to use these colors effectively in your app’s design, or do you need assistance with something else?