Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
Dark blue concrete wall with some small dust spots.
Source Atle Mo
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Original minus the background
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
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Remixed from a drawing in 'Some account of the Worshipful Company of Ironmongers', John Nicholl, 1866.
Source Firkin
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler