This background texture resembles stone. It may be used as a background on web pages or on some of their html elements (header, borders, menu bar, etc.). Just modify it for your needs.
Source V. Hartikainen
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A free seamless texture of reptile skin colored in a dark brown color. As always, you may use it as a repeated background image in your web design works, or for any other purposes.
Source V. Hartikainen
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
From a drawing in 'Az Osztrák-Magyar Monarchia irásban és képben', 1885.
Source Firkin
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
A new one called white wall, not by me this time.
Source Yuji Honzawa
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin