If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
The image a seamless pattern of a wire-mesh fence.I want you to use this pattern as a lower layer.
Source Yamachem
This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.
Source V. Hartikainen
Prismatic Geometric Pattern Background 2
Source GDJ
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
Prismatic Abstract Line Art Pattern Background
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha