Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless pattern formed from a sports car on clker.com. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
A light background pattern with diagonal stripes. Here's a simple light striped background for you.
Source V. Hartikainen
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Prismatic Abstract Geometric Background 5
Source GDJ
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
This one is quite simple in design, it consists of vertical stripes layered on top of a seamless texture.
Source V. Hartikainen
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by captenpub.
Source Firkin
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo