Here is a color palette based on your query:

json
{
  "palette_name": "Classic Contrast",
  "colors": [
    {
      "name": "Classic Green",
      "hex_code": "
          
          #007A33
       "
    },
    {
      "name": "Reflex Blue",
      "hex_code": "
          
          #003DA5
       "
    },
    {
      "name": "White",
      "hex_code": "
          
          #FFFFFF
       "
    },
    {
      "name": "Black",
      "hex_code": "
          
          #000000
       "
    }
  ]
}

This palette features a bold contrast between the deep hues of classic green and reflex blue, complemented by the starkness of black and white. Together, they create a striking and timeless combination suitable for various designs.

What kind of project are you planning to use this color palette for?