Here is a color palette inspired by your query for soft pastel colors with minimalistic and modern aesthetics, including darker blue tones reminiscent of the ocean.

json
{
  "palette_name": "Oceanic Serenity",
  "colors": [
    {
      "name": "Soft Sky",
      "hex_code": "
          
          #A2C2E1
       "
    },
    {
      "name": "Gentle Wave",
      "hex_code": "
          
          #B7E3E8
       "
    },
    {
      "name": "Muted Teal",
      "hex_code": "
          
          #4C8C8C
       "
    },
    {
      "name": "Deep Ocean",
      "hex_code": "
          
          #1D4D6D
       "
    },
    {
      "name": "Pastel Coral",
      "hex_code": "
          
          #F2C6C6
       "
    }
  ]
}

This palette combines soft tones with deeper blues, evoking a calming oceanic vibe while maintaining a modern and minimalistic feel.

Would you like to explore specific applications for this palette, or do you have any other requests?