No Diving Sign

When considering a concise and visual numbering system for depth indicators, a clear, straightforward approach is recommended to ensure easy readability and understanding. Here’s a suggested numbering system for depth markings:

1. Use Consistent Units: Choose between metric (meters or centimeters) or imperial (feet and inches) and apply consistently across all depth indicators.
2. Spacing and Intervals: Mark depth intervals at uniform and easily divisible lengths, such as every 0.5 meters or every foot. This keeps the system intuitive and aids in quick comprehension.
3. Contrast and Visibility: Use high-contrast colors between numbers and their background, like black on white or white on dark blue. This is especially effective in low-light or underwater environments.
4. Orientation: If the depth indicators are on vertical structures or objects, align numbers so they’re readable from the standard line of sight. For instance, numbers should increase in depth as they go downward.
5. Simple Font and Size: Use a simple, sans-serif font that is large enough to be read at a distance. Avoid decorative or script fonts that can be hard to read.

To keep the message concise and visually accessible, it’s ideal to pair depth numbering with minimal but clear icons or arrows, ensuring that users can quickly interpret information. Let me know if you have a specific audience or setting in mind—such as marine, construction, or safety applications—and I can tailor these recommendations further!