A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Element of beach pattern with background.
Source Rones
Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen
This one needs to be used in small areas; you can see it repeat.
Source Luca
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
From a drawing in 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin