Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Black brick wall pattern. Brick your site up!
Source Alex Parker
A repeatable image with dark background and metal grid pattern.
Source V. Hartikainen
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
A black tile-able background with paper-like texture.
Source V. Hartikainen
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Kaleidoscope Prismatic Abstract No Background
Source GDJ
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
A gray background pattern with a texture of textile. Suits perfectly for web design.
Source V. Hartikainen
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Might not be super subtle, but quite original in its form.
Source Alex Smith
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A bit of scratched up grayness. Always good.
Source Dmitry
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Sharp pixel pattern, just like the good old days.
Source Paridhi
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Abstract Ellipses Background Grayscale
Source GDJ
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Prismatic Abstract Geometric Background 4
Source GDJ
A seamless pattern formed from a square tile based on a jpg on Pixabay. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin