Here’s a revised color palette with a darker shade of yellow to complement the deep purple and blue, still inspired by an astronomy theme:

json
{
  "palette_name": "Celestial Depths",
  "colors": [
    {
      "name": "Galactic Purple",
      "hex_code": "
                            
                            #3F1A47
                        "
    },
    {
      "name": "Deep Space Blue",
      "hex_code": "
                            
                            #1A1A4B
                        "
    },
    {
      "name": "Amber Yellow",
      "hex_code": "
                            
                            #BF8B00
                        "
    }
  ]
}

In this palette, “Amber Yellow” provides a darker, richer tone that balances well with the deep purple and blue, creating a more cohesive and atmospheric feel.

Would you like to make any further adjustments or explore different themes?