This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
A version without colours blended together to give a different look.
Source Firkin
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
A heavy hitter at 400x400px, but lovely still.
Source Breezi
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Geometric triangles seem to be quite hot these days.
Source Pixeden
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
Colourful background achieved with gradient fills.
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Prismatic Groovy Concentric Background No Black
Source GDJ
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić