Here is a color palette designed for a premium healthcare app, emphasizing trust, cleanliness, and calmness:

json
{
  "palette_name": "Premium Healthcare",
  "colors": [
    {
      "name": "Deep Sea Blue",
      "hex_code": "
          
          #003D5B
       "
    },
    {
      "name": "Soft Mint",
      "hex_code": "
          
          #A8E6CF
       "
    },
    {
      "name": "Pure White",
      "hex_code": "
          
          #FFFFFF
       "
    },
    {
      "name": "Warm Gray",
      "hex_code": "
          
          #B0B3B8
       "
    },
    {
      "name": "Sunset Orange",
      "hex_code": "
          
          #FF6F61
       "
    }
  ]
}

This palette combines deep blue for professionalism, soft mint for a refreshing touch, pure white for clarity, warm gray for sophistication, and sunset orange for a hint of warmth and approachability.

Would you like assistance with something else related to your healthcare app, such as branding tips or UI design suggestions?