Abstract Tiled Background Extended 10
Source GDJ
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Colored maple leaves scattered on a surface. This is tileable, so it can be used as a background or wallpaper.
Source Eady
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
A version without colours blended together to give a different look.
Source Firkin
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.
Source Ractapopulous
This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
Zero CC tileable hard cover green book, scanned and made by me. CC0
Source Sojan Janso
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Hexagonalism Pattern No Background
Source GDJ
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Prismatic Groovy Concentric Background
Source GDJ
Might not be super subtle, but quite original in its form.
Source Alex Smith
This is the remix of "Background pattern 115" uploaded by "Firkin".Thanks.
Source Yamachem
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
From an image on opengameart.org shared by rubberduck.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin