Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
The texture of this background image has some similarities with leather, and it's colored in a dark brown color. So, if you are looking for a dark brown background image for your website, this may be an option for you.
Source V. Hartikainen
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
Abstract Ellipses Background Grayscale
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Original seamless pattern with an Inkscape filter.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
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