Based on your query for a color palette inspired by the theme of "萨勒克国家公园游记" (Sarek National Park Journey) with a primary color of (71, 147, 216), here’s a harmonious and aesthetically pleasing palette that complements the theme. 

### Color Palette: Sarek Serenity

1. **Sky Blue**
   - **Hex Code:** 
          
          #4793D8
       
   - **Description:** This is the primary theme color, representing the expansive sky over Sarek National Park. It evokes feelings of tranquility and openness.

2. **Forest Green**
   - **Hex Code:** 
          
          #3A8E3A
       
   - **Description:** A rich green that reflects the lush vegetation and forests in the park. This color adds a natural, earthy tone to the palette, promoting harmony with nature.

3. **Mountain Gray**
   - **Hex Code:** 
          
          #AFAFAF
       
   - **Description:** A soft gray reminiscent of the rocky mountains and trails. This neutral color balances the vibrancy of the other colors, providing a sophisticated backdrop.

4. **Sunset Orange**
   - **Hex Code:** 
          
          #FF6F30
       
   - **Description:** A warm orange that captures the essence of sunset views in the national park. This color serves as a highlight, adding energy and warmth to the palette.

### Palette Description:
The **Sarek Serenity** color palette combines the calming essence of the park with vibrant accents. The Sky Blue serves as the foundation, while the Forest Green and Mountain Gray create a natural balance. The Sunset Orange introduces a lively element, making the overall palette both harmonious and visually appealing, ideal for educational materials or themed designs reflecting the beauty of Sarek National Park.