Prismatic Polka Dots Mark II 3 No Background
Source GDJ
Sometimes you just need the simplest thing.
Source Fabricio
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin