The edges of all the red objects line up either vertically or horizontally, but it doesn't appear so. Made from a square tile that can be got by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Inspired by a drawing seen in 'City of Liverpool', James Picton, 1883.
Source Firkin
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Abstract Tiled Background Extended 11
Source GDJ
Prismatic Groovy Concentric Background 2
Source GDJ
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian