Here is a color palette based on your request for a degradation from red to brown, along with a contrasting color to red:

json
{
  "palette_name": "Red to Brown Degradation",
  "colors": [
    {
      "name": "Bright Red",
      "hex_code": "
          
          #FF0000
       "
    },
    {
      "name": "Crimson",
      "hex_code": "
          
          #DC143C
       "
    },
    {
      "name": "Firebrick",
      "hex_code": "
          
          #B22222
       "
    },
    {
      "name": "Indian Red",
      "hex_code": "
          
          #CD5C5C
       "
    },
    {
      "name": "Brown",
      "hex_code": "
          
          #A52A2A
       "
    },
    {
      "name": "Dark Brown",
      "hex_code": "
          
          #8B4513
       "
    },
    {
      "name": "Green",
      "hex_code": "
          
          #008000
       "
    }
  ]
}

This palette transitions smoothly from bright red to dark brown, with a contrasting green color that provides a vibrant contrast to the red hues.

Would you like to explore more palettes or have any specific applications in mind for these colors?