Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The tile this is based on was adapted from an image that was uploaded to Pixabay by frolicsomepl. It can be had in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
It’s big, it’s gradient—and it’s square.
Source Brankic1979
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
This is a hot one. Small, sharp and unique.
Source GraphicsWall
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
This background pattern has futuristic look. So, maybe it could be used on websites or blogs dedicated to video games?!
Source V. Hartikainen
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
You know I love paper patterns. Here is one from Stephen. Say thank you!
Source Stephen Gilbert
A comeback for you: the popular Escheresque, now in black.
Source Patten