Based on the background color you provided ( #A2302D ), I suggest a color palette that includes colors that will stand out well against it for lineart doodles. Here’s a suggested palette:

json
{
  "palette_name": "Doodle Contrast",
  "colors": [
    {
      "name": "Bright White",
      "hex_code": "
          
          #FFFFFF
       "
    },
    {
      "name": "Golden Yellow",
      "hex_code": "
          
          #FFD700
       "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #00BFFF
       "
    },
    {
      "name": "Mint Green",
      "hex_code": "
          
          #98FF98
       "
    },
    {
      "name": "Vibrant Purple",
      "hex_code": "
          
          #800080
       "
    }
  ]
}

Palette Description:

The “Doodle Contrast” palette features bright and vibrant colors that will provide a striking contrast against the deep red background ( #A2302D ). The palette includes a bright white for clarity, a golden yellow for warmth, a sky blue for a fresh pop, a mint green for a calming touch, and a vibrant purple for an artistic flair.

Would you like me to suggest specific doodle styles or elements that would work well with this palette?