background · pure CSS
Background pattern generator
Preview stripes, dots, grid, or checker backgrounds with two custom colors, then copy the CSS background rules — no image files, no HTTP requests.
background
Why this tool exists
Subtle patterns separate sections without loading textures. CSS patterns scale cleanly and respect dark mode when you swap both colors.
How to use it
- Choose a pattern type and two colors (foreground/background).
- Preview at full width and check moiré on your display.
- Copy CSS into your section wrapper class.
- Re-check contrast if you place text directly on the pattern.
Use a different tool when…
You need photographic texture — use images with proper compression instead.
Practical tips
- Low-contrast patterns work best behind content-heavy areas.
- Stripes at 45° draw attention — use for marketing, not data tables.
- Combine with solid color fallback for very old browsers.
FAQ
Which pattern is most accessible?
Low-contrast dots or grid on neutrals — avoid high-frequency stripes behind text.
Can I change stripe angle?
Edit the repeating-linear-gradient angle in the copied CSS (default 45deg).
Do patterns hurt performance?
CSS patterns are usually cheap compared to large PNGs.
Can I use CSS variables for colors?
Replace hex values in the copied rule with var(--token) manually.
Will this work behind video?
Patterns are on background layers — keep video in separate elements above.