From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
A dark metal plate with an embossed grid pattern and a bit of rust. Here's a dark metal plate texture for use as a tiled background on web pages.
Source V. Hartikainen
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
This one needs to be used in small areas; you can see it repeat.
Source Luca
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
This background image is great for using in web design or graphic design projects. And don't forget to visit the homepage. I frequently update this resource with fresh tileable backgrounds.
Source V. Hartikainen
Abstract Ellipses Background Grayscale
Source GDJ
A comeback for you: the popular Escheresque, now in black.
Source Patten
Seamless Olive Green Web Background Image
Source V. Hartikainen
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
Prismatic Polka Dots Mark II No Background
Source GDJ
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
Here's a dark background pattern that contains a steel grid pattern as a texture. Use it as a website background or for other purposes. It's free!
Source V. Hartikainen
A free repetitive background with a dark concrete wall like texture. This one may be used in dark web site designs.
Source V. Hartikainen
Spice up your next school project with this icon background.
Source Swetha
Background Wall, Art Abstract, Watercolor Vintage style CC0 texture.
Source Ractapopulous
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin