Uses spirals from Pixabay. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
Almost like little fish shells, or dragon skin.
Source Graphiste
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Prismatic Polka Dots Mark II No Background
Source GDJ
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
From a drawing in 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-yellow.
Source Yamachem
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady