Based on the secondary main color #797778 that you’ve provided for a dark mode palette, I will generate suitable light and dark variants for your Material UI 2 palette.

Generated Colors:

• Secondary Light: A lighter shade that complements the secondary main while providing a softer contrast.
• Secondary Dark: A darker shade that enhances depth and visibility against a dark background.

Here’s the color palette in JSON format:

json
{
  "palette_name": "Material UI 2 Secondary Color Variants",
  "colors": [
    {
      "name": "Secondary Main",
      "hex_code": "
          
          #797778
       "
    },
    {
      "name": "Secondary Light",
      "hex_code": "
          
          #A6A6A6
       "
    },
    {
      "name": "Secondary Dark",
      "hex_code": "
          
          #4D4D4D
       "
    }
  ]
}

Palette Description:

• Secondary Main: #797778 is a muted gray-brown that serves as a versatile secondary color.
• Secondary Light: #A6A6A6 is a lighter variant that adds brightness and can be used for hover effects or highlights.
• Secondary Dark: #4D4D4D is a darker shade that provides strong contrast, ideal for emphasis in a dark theme.

Would you like any further adjustments or additional colors for your palette?