Here is a color palette that can be used for creating a diagram. It features colors that provide good contrast and visibility.

json
{
  "palette_name": "Diagram Essentials",
  "colors": [
    {
      "name": "Sky Blue",
      "hex_code": "
                            
                            #87CEEB
                        "
    },
    {
      "name": "Coral",
      "hex_code": "
                            
                            #FF7F50
                        "
    },
    {
      "name": "Lime Green",
      "hex_code": "
                            
                            #32CD32
                        "
    },
    {
      "name": "Golden Yellow",
      "hex_code": "
                            
                            #FFD700
                        "
    },
    {
      "name": "Slate Gray",
      "hex_code": "
                            
                            #708090
                        "
    }
  ]
}

This palette includes bright and contrasting colors that will make your diagram visually appealing and easy to understand.

What type of diagram are you planning to create?