Snap! It’s a pattern, and it’s not grayscale! Of course you can always change the color in Photoshop.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
You guessed it – looks a bit like cloth.
Source Peax Webdesign
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
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
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
White circles connecting on a light gray background.
Source Mark Collins
CC0 and seamless wellington boot pattern.
Source SliverKnight
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Prismatic Basic Pattern 2 No Background
Source GDJ
From a drawing in 'From Snowdon to the Sea. Striking stories of North and South Wales', Marie Trevelyan, 1895.
Source Firkin