Here’s a color palette based on your requirements, including two gray accent colors for light mode that complement the existing colors.

json
{
  "palette_name": "Modern Dual Mode Palette",
  "colors": [
    {
      "name": "Primary Green",
      "hex_code": "
          
          #00aa69
       "
    },
    {
      "name": "White",
      "hex_code": "
          
          #ffffff
       "
    },
    {
      "name": "Light Gray",
      "hex_code": "
          
          #d3d3d3
       "
    },
    {
      "name": "Dark Gray",
      "hex_code": "
          
          #a9a9a9
       "
    },
    {
      "name": "Dark Background",
      "hex_code": "
          
          #161616
       "
    },
    {
      "name": "Accent Dark 1",
      "hex_code": "
          
          #1E1E1E
       "
    },
    {
      "name": "Accent Dark 2",
      "hex_code": "
          
          #4A4A4A
       "
    },
    {
      "name": "Light Background",
      "hex_code": "
          
          #ffffff
       "
    },
    {
      "name": "Light Mode Accent 1",
      "hex_code": "
          
          #d3d3d3
       "
    },
    {
      "name": "Light Mode Accent 2",
      "hex_code": "
          
          #a9a9a9
       "
    }
  ]
}

In this palette, the two gray accent colors for light mode are Light Gray ( #d3d3d3 ) and Dark Gray ( #a9a9a9 ), which harmonize well with the existing logo and background colors.

Would you like to see any further adjustments or additional colors?