Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Prismatic Hypnotic Pattern No Background
Source GDJ
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Remixed from an image that was uploaded to Pixabay by CatherineClennan
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
Formed from decorative divider 184 in paint.net. Vectorised with Vector Magic.
Source Firkin
A seamless texture of an abstract wall colored in shades of light orange brown.
Source V. Hartikainen
Prismatic Abstract Geometric Background 5
Source GDJ
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
An orange vertically striped background pattern. Feel free to download and use this orange background pattern, for example, on the web). It resembles a wallpaper with vertical stripes or something similar to it.
Source V. Hartikainen