A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
More in the paper realm, this time with fibers.
Source Jorge Fuentes
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova