This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
This yellow background consists of a pattern of glossy gold buttons arranged in polka dot style on a seamless texture. Here's a pale yellow background pattern. Feel free to use it for your needs!
Source V. Hartikainen
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Prismatic Abstract Geometric Background 5
Source GDJ
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen
Green Background Pattern
Source V. Hartikainen
A seamless pattern formed from a rectangular tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
Remixed from a drawing that was uploaded to Pixabay by captenpub.
Source Firkin