Here’s the updated color palette with a dark green option:

 <Warm Nostalgic Bangkok Temples>
1. Warm Terracotta - 
                            
                            #D86A4A
                         - A vibrant yet soft terracotta that captures the warmth of the temples, evoking fond memories.
2. Dark Forest Green - 
                            
                            #3B6A3A
                         - A rich, deep green that reflects the leafy accents, providing a sense of stability and connection to nature.
3. Light Sky Blue - 
                            
                            #A0D0E8
                         - A brighter light blue that conveys a sunny sky, creating an uplifting and cheerful atmosphere.
4. Creamy White - 
                            
                            #F5F0E6
                         - A warm off-white that offers a gentle contrast, providing clarity without the harshness of bright white.
5. Soft Charcoal - 
                            
                            #5A5A5A
                         - A slightly brighter charcoal gray that provides depth while remaining soft and inviting.

And here’s an alternative with a lime green option:

 <Warm Nostalgic Bangkok Temples>
1. Warm Terracotta - 
                            
                            #D86A4A
                         - A vibrant yet soft terracotta that captures the warmth of the temples, evoking fond memories.
2. Zesty Lime Green - 
                            
                            #A8D83A
                         - A lively lime green that adds a fresh and energetic touch while still complementing the overall warmth.
3. Light Sky Blue - 
                            
                            #A0D0E8
                         - A brighter light blue that conveys a sunny sky, creating an uplifting and cheerful atmosphere.
4. Creamy White - 
                            
                            #F5F0E6
                         - A warm off-white that offers a gentle contrast, providing clarity without the harshness of bright white.
5. Soft Charcoal - 
                            
                            #5A5A5A
                         - A slightly brighter charcoal gray that provides depth while remaining soft and inviting.

Please let me know which green option you prefer or if you have any other adjustments in mind!