This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Might not be super subtle, but quite original in its form.
Source Alex Smith
A seamless pattern formed from background pattern 102
Source Firkin
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
The classic notebook paper with horizontal stripes.
Source Are Sundnes
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
A comeback for you: the popular Escheresque, now in black.
Source Patten
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo