CC0 remixed from a drawing. Walter Crane, 1914, Firkin.
Source SliverKnight
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Here's a tile-able wood background image for use in web design.
Source V. Hartikainen
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
This one is amazing, truly original. Go use it!
Source Viahorizon
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
Black And White Floral Pattern Background from PDP.
Source GDJ
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A seamless background colored in pale orange. It has a paper like texture with diagonal grid pattern.
Source V. Hartikainen
The image depicts polka dot seamless pattern.
Source Yamachem
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
This is a seamless pattern which is derived from a flower petal image.
Source Yamachem
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin