Here is a single color palette based on the keywords "Holbein Acryla Gouache" with 6 colors:

1. Color: "Lemon Yellow"
   Hex Code: 
                            
                            #FDEE00
                        
   Palette Description: A vibrant and sunny yellow reminiscent of fresh lemons.

2. Color: "Cadmium Orange"
   Hex Code: 
                            
                            #FF5E00
                        
   Palette Description: A bold and intense orange shade that adds warmth and energy.

3. Color: "Cobalt Blue"
   Hex Code: 
                            
                            #0047AB
                        
   Palette Description: A rich and deep blue hue that brings a sense of calm and serenity.

4. Color: "Viridian Green"
   Hex Code: 
                            
                            #008B72
                        
   Palette Description: A cool and refreshing green color inspired by the lush foliage of nature.

5. Color: "Alizarin Crimson"
   Hex Code: 
                            
                            #E32636
                        
   Palette Description: A deep red shade with hints of purple, perfect for creating dramatic and passionate compositions.

6. Color: "Burnt Sienna"
   Hex Code: 
                            
                            #E97451
                        
   Palette Description: A warm and earthy brownish-orange color that adds depth and richness to any artwork.

This color palette showcases a range of vibrant and expressive colors commonly used in Holbein Acryla Gouache paintings.