This seamless web background texture looks like gray stone. It's great for using as a background image on web pages, or on some of their elements. Anyway, I hope you will find use for it.
Source V. Hartikainen
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
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
A seamlessly tile-able grunge background image.
Source V. Hartikainen
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A repeating background with wood/straw like texture.
Source V. Hartikainen
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
From an image on opengameart.org shared by rubberduck.
Source Firkin
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
A seamless texture of a rough concrete surface.
Source V. Hartikainen
Prismatic Polka Dots Mark II No Background
Source GDJ
If you need a green background for your blog/website, try this one. Remember that Green Striped Background is seamlessly tileable.
Source V. Hartikainen
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Prismatic Geometric Pattern Background 2 No Black
Source GDJ