Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
Prismatic Abstract Geometric Background 4
Source GDJ
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
A dark striped seamless pattern suitable for use as a background on websites.
Source V. Hartikainen
Prismatic Groovy Concentric Background 2
Source GDJ
A white version of the very popular linen pattern.
Source Ant Ekşiler
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
A version without colours blended together to give a different look.
Source Firkin