The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
This is the remix of "blue wave-seigaiha".This is the flowers of pink silk tree which is called "nemuno-ki".About pink silk tree ,refer to here:https://jp.pinterest.com/pin/500744052301210439/
Source Yamachem
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
A background pattern with green vertical stripes. A new striped background pattern. This time a green one.
Source V. Hartikainen
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin