You guessed it – looks a bit like cloth.
Source Peax Webdesign
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Background formed from the original with an emboss effect
Source GDJ
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
A web texture of brown canvas. Will look great, when used in dark web designs.
Source V. Hartikainen
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A new one called white wall, not by me this time.
Source Yuji Honzawa
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
CC0 and seamless wellington boot pattern.
Source SliverKnight
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin