I can't generate images or provide direct output for image-related tasks. However, I can guide you on how to create a low, blue building background using vector art.

Here's a step-by-step approach:

1. Choose a software: You can use Adobe Illustrator, Inkscape, or any other vector graphics editor to create your artwork.
2. Sketch the building: Start by sketching the basic shape of the building using simple shapes like rectangles, triangles, and lines.
3. Add depth and perspective: Use layers, blending modes, and opacity to create a sense of depth and perspective.
4. Color and shading: Experiment with different blues to achieve the desired shade and add subtle shading effects using gradients or patterns.
5. Refine and edit: Refine your design, ensuring it's balanced, symmetrical, and visually appealing.

If you need help with the technical aspects or want more specific guidance, feel free to ask!