In this super quick tutorial, let’s create a color block geometric background using Adobe Illustrator.
- Create a new document of width and height 900px.
- Using the Rectangular Grid tool, create a grid with the settings:

- Align the grid to the center of the Artboard, using the Align panel.
- Lock the grid by clicking Object > Lock > Selection (shortcut is Cmd 2 / Ctrl 2).
- Ensure “Smart Guides” is on, by checking under View menu.
- Click on Ellipse Tool and draw the circles.
- Click on the pen tool and draw the lines.
- Unlock the grid by clicking Object > Unlock All (shortcut is Cmd + Opt 2 / Ctrl + Alt 2).
- Select all.
- Click on Live Paint Bucket Tool, select the color from the swatches panel and apply to the sections.
- After applying all colors, set stroke to none.
- Now, click on Object > Live Paint > Expand.
- The color block geometric background is ready.