Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A new one called white wall, not by me this time.
Source Yuji Honzawa
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
There are many carbon patterns, but this one is tiny.
Source Designova
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
The image depicts the Japanese Edo pattern called "seigaiha" or "青海波" meaning "blue -sea- wave".I hope it's suitable for the summer season.
Source Yamachem
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Adapted from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.