A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
Abstract Ellipses Background Grayscale
Source GDJ
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Prismatic Geometric Pattern Background 2
Source GDJ
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
Zero CC tileable wood texture, made by me procedurally in Neo Texture Edit.
Source Sojan Janso
Might not be super subtle, but quite original in its form.
Source Alex Smith
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
Prismatic Polyskelion Pattern No Background
Source GDJ
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
A seamless pattern formed from miutopia mug remixes on a tablecloth.
Source Firkin
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
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
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The tile can be had by selecting the rectangle in Inkscape and using shift+alt+i. Remixed from a drawing in 'Flowers of Song', Frederick Weatherly, 1895.
Source Firkin
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
This was formed by distorting an image of a background on Pixabay.
Source Firkin