Got it! I’ll keep “Umber Brown” and add “Walnut Brown” ( #5C3A29 ), while removing “Warm Gray” from the palette. Here’s the updated version:

json
{
  "palette_name": "Vintage Sports Elegance",
  "colors": [
    {
      "name": "Aged Cream",
      "hex_code": "
          
          #F5E6D3
       "
    },
    {
      "name": "Umber Brown",
      "hex_code": "
          
          #6F4C3E
       "
    },
    {
      "name": "Walnut Brown",
      "hex_code": "
          
          #5C3A29
       "
    },
    {
      "name": "Charcoal Gray",
      "hex_code": "
          
          #4B4B4D
       "
    },
    {
      "name": "Mint Teal",
      "hex_code": "
          
          #A5D8D1
       "
    }
  ]
}

Palette Description:

This refined palette now features both “Umber Brown” and “Walnut Brown,” providing a rich and earthy foundation. The “Charcoal Gray” adds depth, while the “Aged Cream” softens the overall look. The mint teal remains as a bright accent, adding a fresh touch to the vintage sports aesthetic.

How does this updated palette feel to you? Any other changes or additions you’d like to make?