### Color Palette for T-Shirt Design

#### Palette Description:
This vibrant yet sophisticated color palette is designed to complement the 
                            
                            #28899d
                         blue-green color of the t-shirt while ensuring that the national flowers of Latin American countries stand out beautifully. The palette features two harmonious greens for the stems, a rich dark rectangle for the background, and a selection of flower colors that add vibrancy without overwhelming saturation.

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1. **T-Shirt Color**
   - **Name:** Tropical Teal
   - **Hex Code:** 
                            
                            #28899D
                        

2. **Background Color**
   - **Name:** Deep Ocean
   - **Hex Code:** 
                            
                            #1E5A6B
                        
   - **Description:** A dark, muted teal that creates a striking contrast with the Tropical Teal, making the flower designs pop.

3. **Stem Color 1**
   - **Name:** Fresh Leaf
   - **Hex Code:** 
                            
                            #3C8A4B
                        
   - **Description:** A vibrant yet soft green that represents the lush stems of the flowers.

4. **Stem Color 2**
   - **Name:** Verdant Grove
   - **Hex Code:** 
                            
                            #5EBE8D
                        
   - **Description:** A lighter, fresh green that provides a lively contrast to the Fresh Leaf, adding dimensionality to the design.

5. **Flower Color 1**
   - **Name:** Coral Bloom
   - **Hex Code:** 
                            
                            #FF6F61
                        
   - **Description:** A warm coral that adds a lively touch, reminiscent of the vibrant flowers found in Latin America.

6. **Flower Color 2**
   - **Name:** Golden Sun
   - **Hex Code:** 
                            
                            #FFC107
                        
   - **Description:** A rich, golden yellow that evokes the brightness of the sun, perfect for accentuating the design.

7. **Flower Color 3**
   - **Name:** Royal Orchid
   - **Hex Code:** 
                            
                            #6F2C91
                        
   - **Description:** A deep, regal purple that adds depth and sophistication, reminiscent of luxurious blooms.

8. **Flower Color 4**
   - **Name:** Fiesta Red
   - **Hex Code:** 
                            
                            #D32F2F
                        
   - **Description:** A vibrant red that captures the festive spirit of Latin America, adding energy and excitement to the design.

---

### Summary:
This palette combines vibrant colors that reflect the natural beauty of Latin American flowers while maintaining a cohesive look that complements the t-shirt's Tropical Teal color. The carefully chosen greens for the stems enhance the organic feel of the design, while the flower colors bring in warmth and energy without being overly saturated.