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
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
This is the remix of "Background pattern 115" uploaded by "Firkin".Thanks.
Source Yamachem
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks. https://cloaks.deviantart.com
Source Atle Mo
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
Geometric triangles seem to be quite hot these days.
Source Pixeden
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
A seamless background pattern with a texture of wood planks. This wood background pattern has vertically arranged planks. You may try to rotate it 90°, to see how it will look like when the wood planks are arranged horizontally.
Source V. Hartikainen
Prismatic Abstract Geometric Background 2
Source GDJ
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous
A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
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