Here’s an expanded palette that incorporates additional colors to enrich the original set, providing even more versatility and options for your designs.

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<Expanded Complementary Colors for Deep Red with Orange, Tongue Color, Outline Color, and More>

1. Deep Red - #771102 - A bold and dark red that serves as the base color.
2. Bright Orange - #FFA500 - A vibrant orange that complements the deep red with a warm and energetic contrast.
3. Soft Cream - #F5E0C3 - A warm, light cream color that softens the palette and adds brightness.
4. Olive Green - #4A5A2A - A muted olive green that adds an earthy balance to the warmth of the reds and oranges.
5. Charcoal Gray - #3B3B3B - A dark charcoal gray that provides depth and contrast against the brighter hues.
6. Dusty Blue - #4B6F8D - A soft, muted blue that offers a cool contrast to the warm tones in the palette.
7. Warm Gold - #D4A522 - A rich gold that enhances the luxurious feel of the palette and works well with both red and orange.
8. Coral Pink - #FF6F61 - A warm coral that bridges the red and orange tones, adding a playful touch.
9. Teal - #008080 - A deep teal that adds a refreshing contrast and balances the warmth of the palette.
10. Light Gray - #D3D3D3 - A soft gray that can be used as a neutral backdrop to let the bolder colors stand out.
11. Lavender - #E6E6FA - A pale lavender that introduces a soft, calming element to the palette.
12. Rust - #B7410E - A rich, earthy tone that complements the deep red and adds a rustic feel.
13. Tongue Pink - #D85E8B - A bright, playful pink that adds a fun and slightly slimy look to the frog monster’s tongue.
14. Outline Black - #1C1C1C - A deep black that provides a strong, bold outline that complements all hues while enhancing the overall design.
15. Burnt Sienna - #E86A4E - A warm, earthy orange-brown that adds depth and richness to the palette.
16. Mint Green - #98FF98 - A soft, pastel green that provides a refreshing contrast against the warm colors.
17. Indigo - #4B0082 - A deep, vibrant indigo that introduces a striking contrast to the palette.
18. Peach - #FFDAB9 - A soft peach that adds a gentle warmth and balances the stronger hues.
19. Slate Blue - #6A8EAE - A muted slate blue that offers calmness and sophistication to the overall palette.
20. Light Coral - #F08080 - A lighter variant of coral that can be used for accents or highlights throughout the design.
21. Goldenrod - #DAA520 - A bright, warm yellow that adds vibrancy and energy to the palette, harmonizing well with the reds and oranges.
22. Forest Green - #228B22 - A rich, deep green that provides a grounded contrast and complements the earthy tones.
23. Sky Blue - #87CEEB - A light, cheerful blue that adds a fresh and airy feel to the palette.

Description of New Colors:

• Burnt Sienna ( #E86A4E ): Adds a warm, earthy tone that pairs well with the deep red and complements the other warm colors.
• Mint Green ( #98FF98 ): Provides a refreshing and soft contrast, lightening the overall palette.
• Indigo ( #4B0082 ): A rich, deep blue that enhances the palette’s vibrancy and adds depth.
• Peach ( #FFDAB9 ): Softens the overall look while harmonizing with the reds and oranges.
• Slate Blue ( #6A8EAE ): Offers a sophisticated and muted contrast, balancing the warmth of the palette.
• Light Coral ( #F08080 ): A softer take on coral that can be used for delicate highlights.
• Goldenrod ( #DAA520 ): Adds brightness and energy to the palette, harmonizing with the warmer tones.
• Forest Green ( #228B22 ): Provides a rich, natural contrast that complements the earthy elements.
• Sky Blue ( #87CEEB ): A cheerful blue that introduces a fresh, light feel to the overall palette.

This expanded palette offers a wide range of colors for creating depth, contrast, and variety in your designs.

Would you like to focus on specific applications for this palette, or explore other themes or concepts?