Here’s the complete expanded palette that includes shadows for all the existing hues, enhancing the versatility and depth of your designs even further:

 <Expanded Complementary Colors for Deep Red with Orange, Tongue Color, Outline Color, Highlights, and Shadows>
1. Deep Red - 
                            
                            #771102
                         - A bold and dark red that serves as the base color.
2. Deep Red Highlight - 
                            
                            #A64A3D
                         - A lighter shade to add highlights and dimension to the deep red.
3. Deep Red Shadow - 
                            
                            #4F0D0D
                         - A darker shade for adding depth to the deep red.
4. Bright Orange - 
                            
                            #FFA500
                         - A vibrant orange that complements the deep red with a warm and energetic contrast.
5. Bright Orange Highlight - 
                            
                            #FFB733
                         - A lighter orange for highlights that brightens the vibrant orange.
6. Bright Orange Shadow - 
                            
                            #BF6E00
                         - A darker shade for adding depth to the bright orange.
7. Soft Cream - 
                            
                            #F5E0C3
                         - A warm, light cream color that softens the palette and adds brightness.
8. Soft Cream Highlight - 
                            
                            #FFF4E2
                         - A very light cream for gentle highlights, enhancing the softness.
9. Soft Cream Shadow - 
                            
                            #D3B59C
                         - A slightly darker cream shade for adding depth.
10. Olive Green - 
                            
                            #4A5A2A
                         - A muted olive green that adds an earthy balance to the warmth of the reds and oranges.
11. Olive Green Highlight - 
                            
                            #A8B86B
                         - A lighter olive shade for highlights to add dimension.
12. Olive Green Shadow - 
                            
                            #3A4B1E
                         - A darker olive shade for creating depth.
13. Charcoal Gray - 
                            
                            #3B3B3B
                         - A dark charcoal gray that provides depth and contrast against the brighter hues.
14. Charcoal Gray Highlight - 
                            
                            #6D6D6D
                         - A lighter gray that can be used for subtle highlights.
15. Charcoal Gray Shadow - 
                            
                            #1F1F1F
                         - A darker shade for adding depth to the charcoal gray.
16. Dusty Blue - 
                            
                            #4B6F8D
                         - A soft, muted blue that offers a cool contrast to the warm tones in the palette.
17. Dusty Blue Highlight - 
                            
                            #A6B3C0
                         - A lighter blue for highlights that adds brightness and dimension.
18. Dusty Blue Shadow - 
                            
                            #2E4D65
                         - A darker blue for depth and contrast.
19. Warm Gold - 
                            
                            #D4A522
                         - A rich gold that enhances the luxurious feel of the palette and works well with both red and orange.
20. Warm Gold Highlight - 
                            
                            #E6C55D
                         - A brighter gold for highlighting areas that catch light.
21. Warm Gold Shadow - 
                            
                            #9B7A1C
                         - A darker gold shade for depth.
22. Coral Pink - 
                            
                            #FF6F61
                         - A warm coral that bridges the red and orange tones, adding a playful touch.
23. Coral Pink Highlight - 
                            
                            #FF9B8E
                         - A lighter coral for highlights that adds softness.
24. Coral Pink Shadow - 
                            
                            #BF4D4A
                         - A darker coral for adding depth.
25. Teal - 
                            
                            #008080
                         - A deep teal that adds a refreshing contrast and balances the warmth of the palette.
26. Teal Highlight - 
                            
                            #4FBFBF
                         - A lighter teal for highlights that brightens the deep teal.
27. Teal Shadow - 
                            
                            #005353
                         - A darker teal for depth and contrast.
28. Light Gray - 
                            
                            #D3D3D3
                         - A soft gray that can be used as a neutral backdrop to let the bolder colors stand out.
29. Light Gray Highlight - 
                            
                            #EAEAEA
                         - A very light gray for highlights that maintains neutrality.
30. Light Gray Shadow - 
                            
                            #A6A6A6
                         - A slightly darker gray for subtle shadowing.
31. Lavender - 
                            
                            #E6E6FA
                         - A pale lavender that introduces a soft, calming element to the palette.
32. Lavender Highlight - 
                            
                            #F2F2FF
                         - A lighter lavender for gentle highlights.
33. Lavender Shadow - 
                            
                            #B8B8D8
                         - A darker lavender for depth.
34. Rust - 
                            
                            #B7410E
                         - A rich, earthy tone that complements the deep red and adds a rustic feel.
35. Rust Highlight - 
                            
                            #D76C2C
                         - A lighter rust for highlights that adds warmth.
36. Rust Shadow - 
                            
                            #7F3E0D
                         - A darker rust shade for depth.
37. Tongue Pink - 
                            
                            #D85E8B
                         - A bright, playful pink that adds a fun and slightly slimy look to the frog monster's tongue.
38. Tongue Pink Highlight - 
                            
                            #EB8FA6
                         - A lighter shade for highlights on the tongue.
39. Tongue Pink Shadow - 
                            
                            #A44A5B
                         - A darker shade for creating depth on the tongue.
40. Outline Black - 
                            
                            #1C1C1C
                         - A deep black that provides a strong, bold outline that complements all hues while enhancing the overall design.
41. Burnt Sienna - 
                            
                            #E86A4E
                         - A warm, earthy orange-brown that adds depth and richness to the palette.
42. Burnt Sienna Highlight - 
                            
                            #F2B7A0
                         - A lighter burnt sienna for highlights that enhances warmth.
43. Burnt Sienna Shadow - 
                            
                            #C85E4D
                         - A darker burnt sienna for additional depth.
44. Mint Green - 
                            
                            #98FF98
                         - A soft, pastel green that provides a refreshing contrast against the warm colors.
45. Mint Green Highlight - 
                            
                            #B2FFB2
                         - A lighter mint green for highlights.
46. Mint Green Shadow - 
                            
                            #6EBB6E
                         - A darker mint green for adding depth.
47. Indigo - 
                            
                            #4B0082
                         - A deep, vibrant indigo that introduces a striking contrast to the palette.
48. Indigo Highlight - 
                            
                            #6E3B9A
                         - A lighter indigo for highlights that adds dimension.
49. Indigo Shadow - 
                            
                            #2E0056
                         - A darker indigo for creating depth.
50. Peach - 
                            
                            #FFDAB9
                         - A soft peach that adds a gentle warmth and balances the stronger hues.
51. Peach Highlight - 
                            
                            #FFE6D4
                         - A lighter peach for highlights.
52. Peach Shadow - 
                            
                            #D6B59B
                         - A darker peach for adding depth.
53. Slate Blue - 
                            
                            #6A8EAE
                         - A muted slate blue that offers calmness and sophistication to the overall palette.
54. Slate Blue Highlight - 
                            
                            #A4C8E1
                         - A lighter slate blue for highlights.
55. Slate Blue Shadow - 
                            
                            #4A6585
                         - A darker slate blue for depth.
56. Light Coral - 
                            
                            #F08080
                         - A lighter variant of coral that can be used for accents or highlights throughout the design.
57. Light Coral Highlight - 
                            
                            #F5A6A6
                         - A brighter coral accent for highlights.
58. Light Coral Shadow - 
                            
                            #C05454
                         - A darker coral for creating depth.
59. Goldenrod - 
                            
                            #DAA520
                         - A bright, warm yellow that adds vibrancy and energy to the palette, harmonizing well with the reds and oranges.
60. Goldenrod Highlight - 
                            
                            #F5C24E
                         - A lighter goldenrod for highlights.
61. Goldenrod Shadow - 
                            
                            #A67A1E
                         - A darker goldenrod for depth.
62. Forest Green - 
                            
                            #228B22
                         - A rich, deep green that provides a grounded contrast and complements the earthy tones.
63. Forest Green Highlight - 
                            
                            #4D9B4D
                         - A lighter forest green for highlights.
64. Forest Green Shadow - 
                            
                            #0E4D0E
                         - A darker forest green for added depth.
65. Sky Blue - 
                            
                            #87CEEB
                         - A light, cheerful blue that adds a fresh and airy feel to the palette.
66. Sky Blue Highlight - 
                            
                            #B3E0F7
                         - A lighter sky blue for highlights.
67. Sky Blue Shadow - 
                            
                            #5B9BD5
                         - A darker sky blue for depth.

Description of Shadow Colors:

• Each shadow color is designed to be darker than its corresponding base color, providing depth and dimension. These shadows can be used to create contrast, define shapes, and enhance the three-dimensional quality of your designs.

With this comprehensive palette, you have a variety of colors, highlights, and shadows to work with, allowing for rich, dynamic, and visually engaging designs.

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