You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Remixed from a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
Here's a quite bright pink background pattern for use on websites. It doesn't look like a real fur, but it definitely resembles one.
Source V. Hartikainen
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
It’s big, it’s gradient—and it’s square.
Source Brankic1979
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
Prismatic Hexagonalism Pattern No Background
Source GDJ
Same classic 45-degree pattern, dark version.
Source Luke McDonald
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
You guessed it – looks a bit like cloth.
Source Peax Webdesign
This one is amazing, truly original. Go use it!
Source Viahorizon
A version without colours blended together to give a different look.
Source Firkin
Seamless Olive Green Web Background Image
Source V. Hartikainen
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
A repeatable image with dark background and metal grid pattern.
Source V. Hartikainen
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien