Minimalist Rainbow Water Bottle Sticker Prompts for Vector Design

Create a series of clean, minimalist rainbow designs for water bottle stickers using neutral tones. Each prompt should emphasize a pure white background, high contrast, and a vector style devoid of shading or gradients, ideal for die-cut sticker formats. Incorporate placeholders like [Rainbow Shape], [Line Style], and [Tonal Range] to customize each concept. The prompts should inspire the creation of simple yet expressive rainbow illustrations that highlight elegance and neutrality, perfect for high-quality sticker printing.