Here’s a color palette based on your provided RGB values:

json
{
  "palette_name": "Modern Contrast",
  "colors": [
    {
      "name": "Black",
      "hex_code": "
          
          #000000
       "
    },
    {
      "name": "White Smoke",
      "hex_code": "
          
          #F5F5F5
       "
    },
    {
      "name": "Ocean Blue",
      "hex_code": "
          
          #2A77A1
       "
    },
    {
      "name": "Crimson Red",
      "hex_code": "
          
          #840410
       "
    },
    {
      "name": "Deep Teal",
      "hex_code": "
          
          #263737
       "
    },
    {
      "name": "Purple Plum",
      "hex_code": "
          
          #86446E
       "
    },
    {
      "name": "Golden Orange",
      "hex_code": "
          
          #D78E10
       "
    },
    {
      "name": "Sky Blue",
      "hex_code": "
          
          #4C75B7
       "
    },
    {
      "name": "Gray",
      "hex_code": "
          
          #BDBEC6
       "
    },
    {
      "name": "Slate Gray",
      "hex_code": "
          
          #5E7072
       "
    }
  ]
}

This palette combines deep and muted colors with bright accents, creating a modern and sophisticated look. The contrast between the dark and light colors offers versatility for various design applications.

Would you like to explore how to use this palette in a specific project, or do you have another color theme in mind?