Create a custom canvas sized exactly to 1191x670 px. Use the "Elements" tab to search for "Polygon" and change the colors to charcoal, obsidian, and deep grey.
Add a thin, faint grey or blue line to the edges of the polygons to give them a "3D" or "technological" feel. 1191x670 Wallpaper - Black Abstract Polygons (W...
If you are looking for high-quality versions of this specific aesthetic, search for these keywords on stock or wallpaper sites: Create a custom canvas sized exactly to 1191x670 px
Ensure the "polygons" aren't all one flat hex code. Use subtle gradients (e.g., #000000 to #1A1A1A) to simulate depth. and deep grey. Add a thin