Here’s a color palette inspired by Oxford blue and jonquil, along with complementary colors to give you a variety of options for your personal planner:

json
{
  "palette_name": "Oxford Blue & Jonquil Harmony",
  "colors": [
    {
      "name": "Oxford Blue",
      "hex_code": "
                            
                            #002147
                        "
    },
    {
      "name": "Jonquil",
      "hex_code": "
                            
                            #F6EB61
                        "
    },
    {
      "name": "Soft Gray",
      "hex_code": "
                            
                            #B0B3B8
                        "
    },
    {
      "name": "Coral Pink",
      "hex_code": "
                            
                            #FF6F61
                        "
    },
    {
      "name": "Mint Green",
      "hex_code": "
                            
                            #98FF98
                        "
    }
  ]
}

This palette combines the deep, classic tone of Oxford blue with the cheerful brightness of jonquil, while adding soft gray for balance, coral pink for a pop of color, and mint green for a refreshing touch.

Do you have any specific themes or styles in mind for your planner that I could help with?