Color Palette for "The Last Leaf" by O. Henry:

1. Sage Green
   Hex Code: 
          
          #8CB78B
       
   A calming and earthy green reminiscent of nature and growth, reflecting the themes of hope and resilience in the story.

2. Rust Red
   Hex Code: 
          
          #B7410E
       
   A deep and warm red symbolizing determination and strength, mirroring the perseverance shown by the characters in the narrative.

3. Golden Yellow
   Hex Code: 
          
          #FFD700
       
   A vibrant and radiant yellow representing optimism and brightness, reflecting the idea of finding beauty in simplicity and small moments.

4. Slate Gray
   Hex Code: 
          
          #708090
       
   A sophisticated and timeless gray shade evoking a sense of nostalgia and melancholy, capturing the bittersweet essence of the story.

5. Cream
   Hex Code: 
          
          #FFF8E7
       
   A soft and light off-white color symbolizing purity and innocence, embodying the delicate and fragile nature of life portrayed in the narrative.

6. Deep Indigo
   Hex Code: 
          
          #3B5998
       
   A rich and deep blue hue signifying mystery and wisdom, reflecting the profound emotions and hidden depths explored in O. Henry's work "The Last Leaf".