This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857
Source Firkin
Abstract Tiled Background Extended 10
Source GDJ
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
A dark metal plate with an embossed grid pattern and a bit of rust. Here's a dark metal plate texture for use as a tiled background on web pages.
Source V. Hartikainen
A free seamless background texture that looks like a brown stone wall.
Source V. Hartikainen
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
From a drawing in 'Handbook of the excursions proposed to be made by the Lincoln Diocesan Architectural Society, on the 27th and 28th of May, 1857', Edward Trollope, 1857.
Source Firkin
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
Green Web Background, Seamless tile.
Source V. Hartikainen
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns