Thank you for the clarification! Here’s a revised color palette that features a vibrant, low-contrast seventh color that maintains good readability with black text:

 <Low Contrast Complementary Palette> 
1. Golden Yellow - 
                            
                            #EBC750
                         - A vibrant, warm yellow that adds brightness and energy.
2. Lavender Purple - 
                            
                            #BF74D0
                         - A soft, soothing purple that adds a touch of elegance.
3. Sky Blue - 
                            
                            #7599C4
                         - A calm, serene blue reminiscent of clear skies.
4. Rose Pink - 
                            
                            #C581AB
                         - A gentle, romantic pink that brings warmth to the palette.
5. Lime Green - 
                            
                            #9FC458
                         - A fresh, lively green that symbolizes renewal and growth.
6. Terracotta Orange - 
                            
                            #DE7740
                         - A warm, earthy orange that adds a grounding effect.
7. Soft Peach - 
                            
                            #F2A493
                         - A muted peach that complements the palette while allowing for good readability with black text.

In this palette, the soft peach acts as the seventh color, providing a gentle contrast that is still vibrant without being overly stark. It complements the other colors while ensuring that black text remains readable.

How does this palette align with your vision? Would you like any further adjustments or assistance with specific design elements?