Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
Prismatic Chevrons Pattern 5 With Background
Source GDJ
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
CC0 remixed from a drawing. Walter Crane, 1914, Firkin.
Source SliverKnight
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Fix side and a seamless pattern formed from circles.
Source SliverKnight
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen