Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.
Source Firkin
A floral background formed from numerous clones of flower 117.
Source Firkin
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Might not be super subtle, but quite original in its form.
Source Alex Smith
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
This background image is great for using in web design or graphic design projects. And don't forget to visit the homepage. I frequently update this resource with fresh tileable backgrounds.
Source V. Hartikainen
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Alternative colour scheme for the original floral pattern.
Source Firkin
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
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin