Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Prismatic Groovy Concentric Background 2
Source GDJ
This seamless light brown background texture resembles a wallpaper with vertical stripes. One way to use it is as a tiled background on web sites.
Source V. Hartikainen
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Prismatic Floral Background No Black
Source GDJ
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Oh yes, it happened! A pattern in full color.
Source Atle Mo
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Prismatic Abstract Line Art Pattern Background
Source GDJ
A seamless pattern based on a tile that can be achieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Dark blue concrete wall with some small dust spots.
Source Atle Mo