Prismatic Groovy Concentric Background 5 No Black
Source GDJ
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Prismatic Groovy Concentric Background 3
Source GDJ
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
White circles connecting on a light gray background.
Source Mark Collins
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
One more sharp little tile for you. Subtle circles this time.
Source Blunia
A seamless texture of an abstract wall colored in shades of light orange brown.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin