Dark wooden pattern, given the subtle treatment. based on texture from Cloaks. https://cloaks.deviantart.com
Source Atle Mo
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Seamless Olive Green Web Background Image
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Uses spirals from Pixabay. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
This is a seamless pattern which is derived from a flower petal image.
Source Yamachem
Fix and cc0 to get the tile this is based on.
Source SliverKnight
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Feel free to download this "Dark Wood" background texture for your web site. The background tiles seamlessly!
Source V. Hartikainen
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
A bit simplified version. Although it could be edited out to be simpler. Anyway, this time the tiling is converted to a pattern fill -which is using clipping for the tile's edges.
Source Lazur URH
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin