Here’s a color palette based on your query for soft lilac, lavender purple, and complementary soft white, featuring six harmonious colors:

### Color Palette: **Dreamy Lavender**

1. **Soft Lilac**
   - **Hex Code:** 
                            
                            #E6C7E5
                        
   - **Description:** A gentle light purple that evokes a feeling of tranquility and softness, reminiscent of blooming lilacs in spring.

2. **Lavender Purple**
   - **Hex Code:** 
                            
                            #BDA0D7
                        
   - **Description:** A classic lavender tone that brings a sense of calmness and elegance, perfect for creating a serene atmosphere.

3. **Soft White**
   - **Hex Code:** 
                            
                            #F6F5F4
                        
   - **Description:** An off-white shade with a hint of warmth, providing a clean and gentle backdrop that enhances the softness of the purples.

4. **Misty Lavender**
   - **Hex Code:** 
                            
                            #D8B5E3
                        
   - **Description:** A dreamy, slightly muted lavender that adds depth to the palette while maintaining a light and airy feel.

5. **Pale Plum**
   - **Hex Code:** 
                            
                            #E9D2E6
                        
   - **Description:** A delicate pale plum that balances the brighter purples, contributing a subtle richness without overwhelming the softness.

6. **Whispering Gray**
   - **Hex Code:** 
                            
                            #EAE2E0
                        
   - **Description:** A very soft gray that acts as a neutral bridge between the colors, providing sophistication and grounding the palette.

### Overall Palette Description:
This **Dreamy Lavender** palette encapsulates a serene and soothing aesthetic, perfect for designs that aim to evoke calmness and femininity. The interplay of soft lilacs and lavender purples, complemented by soft whites and gentle grays, creates a harmonious visual experience ideal for branding, wedding themes, or tranquil spaces.