Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Abstract Ellipses Background Grayscale
Source GDJ
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
Derived from a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Remixed from a drawing in 'Incidents on a Journey through Nubia to Darfoor', F. Ensor, 1891.
Source Firkin
Colourful background achieved with gradient fills.
Source Firkin
Seamless Olive Green Web Background Image
Source V. Hartikainen
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Derived from an image that was uploaded to Pixabay by TheDigitalArtist
Source Firkin
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler