Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
A blue background wallpaper for websites. It has a seamless texture with vertical stripes. It looks quite nice not only when using as a tiled background on websites, but also on computer desktops.
Source V. Hartikainen
8 by 8 pixels, and just what the title says.
Source pixilated
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Adapted from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Inspired by a pattern found in 'A General History of Hampshire, or the County of Southampton, including the Isle of Wight', Bernard Woodwood, 1861
Source Firkin
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Looks like an old wall. I guess that’s it then?
Source Viahorizon
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
Remixed from a drawing in 'Prehistoric Man: researches into the origin of civilisation in the old and the new world', Daniel Wilson, 1876.
Source Firkin
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Might not be super subtle, but quite original in its form.
Source Alex Smith
A seamless pale yellow paper background with a pattern of animal tracks.
Source V. Hartikainen