Color Palette:

1. Color Name: 橙色 (Orange)
   Hex Code: 
                            
                            #FF8800
                        
   Palette Description: This vibrant and warm orange color represents the beautiful hues of a sunset (夕焼け) sky.

2. Color Name: 桃色 (Peach)
   Hex Code: 
                            
                            #FFC8B4
                        
   Palette Description: This soft and delicate peach color captures the gentle and serene tones often seen during a peaceful sunset (夕焼け) scene.

3. Color Name: 紫陽花色 (Hydrangea)
   Hex Code: 
                            
                            #6B5B95
                        
   Palette Description: This deep and rich purple color resembles the vibrant shades of hydrangea flowers that can be observed during a sunset (夕焼け).

4. Color Name: 淡い緑 (Soft Green)
   Hex Code: 
                            
                            #A7C497
                        
   Palette Description: This light and refreshing green color reflects the serene and calming atmosphere often associated with a sunset (夕焼け).

5. Color Name: 薄紅 (Pale Pink)
   Hex Code: 
                            
                            #FFD1DC
                        
   Palette Description: This delicate and pale pink color symbolizes the soft and romantic hues that can be observed during a picturesque sunset (夕焼け) moment.

Note: The color palette is inspired by the concept and visual elements of a sunset (夕焼け). These colors aim to capture the various shades and moods that are often present during this natural phenomenon.