Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
This one is amazing, truly original. Go use it!
Source Viahorizon
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Hexagonalist Pattern No Background
Source GDJ
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen