This could be a hippy vintage wallpaper.
Source Tileable Patterns
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
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
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
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
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
Prismatic Snowflakes Pattern 3 No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
You guessed it – looks a bit like cloth.
Source Peax Webdesign
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
Colour version of the original pattern.
Source Firkin
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki