button · sample · Haiku 4.5 · trial 087 of 100

What the model said

I'd suggest **#0066cc** – a vibrant blue that's widely used for primary buttons, works well on both light and dark backgrounds, and has good contrast for accessibility.

If you want alternatives:
- **#10b981** – emerald green, friendly and action-oriented
- **#3b82f6** – lighter blue, modern and clean
- **#f59e0b** – amber/orange, good for secondary or warning actions
- **#6366f1** – indigo, trendy and professional

What style or use case are you designing for? That might help narrow it down.