Based on the colors of Astragalus bibullatus, here’s a distinct color palette that would work well for a line graph:

json
{
  "palette_name": "Astragalus Bibullatus Palette",
  "colors": [
    {
      "name": "Deep Violet",
      "hex_code": "
          
          #5E4B8F
       "
    },
    {
      "name": "Forest Green",
      "hex_code": "
          
          #3B6A4D
       "
    },
    {
      "name": "Burnt Orange",
      "hex_code": "
          
          #C65D30
       "
    },
    {
      "name": "Dark Goldenrod",
      "hex_code": "
          
          #B8860B
       "
    },
    {
      "name": "Crimson Red",
      "hex_code": "
          
          #A52A2A
       "
    }
  ]
}

This palette features deep, vibrant colors that will stand out well on a line graph, ensuring clarity and distinction between different data lines.

Would you like to know more about how to apply this palette or any specific use cases?