A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
A pale olive green background with a seamless texture.
Source V. Hartikainen
Geometric triangles seem to be quite hot these days.
Source Pixeden
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Remixed 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
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is sort of fresh, but still feels a bit old school.
Source Martuchox
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
The Grid. A digital frontier. I tried to picture clusters of information as they traveled through the computer.
Source Haris Šumić
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez