Here is a curated color palette suitable for an app UI focused on invoicing. This palette combines professional and calming colors to enhance user experience while ensuring readability.

json
{
  "palette_name": "Invoicing App UI",
  "colors": [
    {
      "name": "Deep Blue",
      "hex_code": "
                            
                            #003366
                        "
    },
    {
      "name": "Soft Gray",
      "hex_code": "
                            
                            #F5F5F5
                        "
    },
    {
      "name": "Bright Green",
      "hex_code": "
                            
                            #28A745
                        "
    },
    {
      "name": "Warm Yellow",
      "hex_code": "
                            
                            #FFC107
                        "
    },
    {
      "name": "Charcoal Black",
      "hex_code": "
                            
                            #343A40
                        "
    }
  ]
}

This palette includes a deep blue for headers and footers, a soft gray for backgrounds, bright green for success messages, warm yellow for highlights, and charcoal black for text.

Would you like to explore different shades or additional colors for specific elements in your invoicing app?