Blue Tunnels - Abstract 3D Vector Background

Abstract layered tunnels in shades of blue.
This is a 3D vector illustration showing two tunnel shapes against a solid blue background. The tunnels are formed by concentric layers, with each layer a slightly different shade of blue. The color gradient ranges from light blue on the outermost layers to a deep, dark blue at the center of each tunnel, creating depth and visual interest. The perspective offers a modern, abstract design.