Color Palette:

1. Navy Blue (
                            
                            #2C3E50
                        ) - a deep, rich navy blue that evokes feelings of sophistication and elegance. Perfect for a classic shirt design.

2. Coral (
                            
                            #FF7F50
                        ) - a bright, cheerful coral that adds a pop of color to any shirt design. Ideal for a fun, playful look.

3. Forest Green (
                            
                            #228B22
                        ) - a deep, earthy green that brings a sense of calm and serenity to a shirt design. Perfect for nature-inspired themes.

4. Charcoal (
                            
                            #36454F
                        ) - a dark, muted gray that adds depth and contrast to a shirt design. Great for a modern, minimalist look.

5. Mustard (
                            
                            #FFDB58
                        ) - a warm, golden yellow that adds a touch of vintage charm to a shirt design. Perfect for a retro-inspired look.

This color palette offers a range of hues that can be mixed and matched to create a variety of shirt designs. From classic navy blue to playful coral and earthy forest green, this palette has something for everyone. The addition of charcoal and mustard adds depth and interest to designs, making them stand out from the crowd.