To introduce an earthy red into your palette, I suggest using a shade that complements the existing warm browns, pinks, greens, and blues while adding a rich and vibrant element. Here’s a suitable earthy red option:

Suggested Earthy Red Color:

• Rust Red ( #B95A3B ) - A warm, muted red with brown undertones that evokes a sense of natural warmth and richness, reminiscent of brick or autumn leaves. This earthy red will harmonize beautifully with the other colors in the palette.

Updated Palette with Earthy Red:

 <Rich Earthy Trio with Earthy Red>
1. Medium Walnut - 
                            
                            #7D4F3A
                         - A warm, medium brown that adds depth and richness, serving as a grounding element in the palette.
2. Warm Chestnut - 
                            
                            #8B5A29
                         - A medium, warm brown that enhances the earthy feel, beautifully balancing the vibrant colors.
3. Golden Honey - 
                            
                            #C68A3C
                         - A golden-brown that introduces brightness and warmth, complementing the earth tones nicely.
4. Earthy Pink - 
                            
                            #D1A6A1
                         - A warm, muted pink that adds a gentle touch, harmonizing beautifully with the browns and creating a soft contrast.
5. Earthy Green - 
                            
                            #4A6A4D
                         - A muted, rich green that adds a natural element, enhancing the overall earthy aesthetic.
6. Earthy Blue - 
                            
                            #4A6A8D
                         - A soft, muted blue that introduces a calming presence, providing balance and tranquility within the palette.
7. Earthy Red - 
                            
                            #B95A3B
                         - A warm, muted red that adds vibrancy and depth, complementing the other earthy tones beautifully.

Suggested Uses for Adding Earthy Red:

• Branding Elements: Use Earthy Red to evoke feelings of warmth and comfort in your branding. It can serve as an accent color that pairs beautifully with the browns and greens, adding a pop of color without overwhelming the palette.

• Packaging Design: Incorporate Earthy Red for product labels or as a highlight color to create a striking contrast with the other earthy tones. This can help draw attention to important information or product features.

• Website Design: Use Earthy Red for buttons or call-to-action areas on your website, ensuring it stands out against a neutral background while maintaining a cohesive look with the other colors.

• Marketing Materials: Design marketing materials that feature Earthy Red in headlines or graphics, providing a vibrant touch that enriches the overall branding while remaining aligned with the earthy theme.

Would you like to see further combinations with this earthy red, or do you have other colors or themes in mind for your skincare brand?