To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Colorful Floral Background 3 No Black
Source GDJ
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Old China with a modern twist, take two.
Source Adam Charlts
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
A new one called white wall, not by me this time.
Source Yuji Honzawa
More in the paper realm, this time with fibers.
Source Jorge Fuentes
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope 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
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight