Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
White circles connecting on a light gray background.
Source Mark Collins
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
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
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
This background texture resembles stone. It may be used as a background on web pages or on some of their html elements (header, borders, menu bar, etc.). Just modify it for your needs.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A bit of scratched up grayness. Always good.
Source Dmitry
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin