This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
Prismatic Hexagonalism Pattern No Background
Source GDJ
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
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
The base gradient edited so now more details are rendered.
Source Lazur URH
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Continuing the geometric trend, here is one more.
Source Mike Warner
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
A pattern formed from repeated instances of corner decoration 8. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Retro Circles Background 5 No Black
Source GDJ