Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Snap! It’s a pattern, and it’s not grayscale! Of course you can always change the color in Photoshop.
Source Atle Mo
Like the name suggests, this background image consists of a pattern of dark bricks. It may be an option for you, if you are looking for something that looks like a brick wall for use as a background on web pages. It's not a masterpiece, but looks pretty nice when is tiled.
Source V. Hartikainen
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
Sharp but soft triangles in light shades of gray.
Source Pixeden
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 4
Source GDJ
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
This one needs to be used in small areas; you can see it repeat.
Source Luca
Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin