Here’s a color palette inspired by your description of a modern showroom with off-white exterior cladding and black writing. The palette contains colors that complement the off-white while maintaining a modern aesthetic without being too pale.

json
{
  "palette_name": "Modern Showroom",
  "colors": [
    {
      "name": "Off White",
      "hex_code": "
          
          #F8F8F0
       "
    },
    {
      "name": "Deep Black",
      "hex_code": "
          
          #101010
       "
    },
    {
      "name": "Charcoal Gray",
      "hex_code": "
          
          #4A4A4A
       "
    },
    {
      "name": "Soft Beige",
      "hex_code": "
          
          #E7E1D7
       "
    },
    {
      "name": "Slate Blue",
      "hex_code": "
          
          #6A7B9A
       "
    }
  ]
}

This palette combines a warm off-white with deep black for contrast, alongside a charcoal gray for depth and soft beige for warmth. The slate blue adds a subtle hint of color without overpowering the overall modern look.

Would you like any further assistance or variations on this palette?