Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Sort of reminds me of those old house wallpapers.
Source Tish
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Black brick wall pattern. Brick your site up!
Source Alex Parker
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
A free seamless background with pink spots.
Source V. Hartikainen
A new one called white wall, not by me this time.
Source Yuji Honzawa
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
From a drawing in 'Jardyne's Wife', Charles Wills, 1891.
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury