Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek