Green Background Pattern
Source V. Hartikainen
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien