Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
Tile-able Dark Brown Wood Background. Feel free to use it as a background image in your designs or somewhere on the web. By the way, the color seems to be close to Coffee Brown.
Source V. Hartikainen
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
A seamless textured paper for backgrounds. Colored in pale orange hues.
Source V. Hartikainen
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
Prismatic Groovy Concentric Background 2
Source GDJ
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod