You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Retro Circles Background 5 No Black
Source GDJ
From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868.
Source Firkin
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Might not be super subtle, but quite original in its form.
Source Alex Smith
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Otis Ray Redding was an American soul singer-songwriter, record producer, arranger, and talent scout. So you know.
Source Thomas Myrman
Prismatic Triangular Background Design Mark II 5
Source GDJ
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
A background pattern with a look of rough fabric.
Source V. Hartikainen
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Diagonal lines with a lot of texture to them.
Source Ashton
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
This background pattern contains a texture of yellow wood planks. I think it looks quite original.
Source V. Hartikainen
Tiny circle waves, almost like the ocean.
Source Sagive
Embossed lines and squares with subtle highlights.
Source Alex Parker