Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Prismatic Polka Dots 3 No Background
Source GDJ
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
A new one called white wall, not by me this time.
Source Yuji Honzawa
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
This is the remix of "Background pattern 115" uploaded by "Firkin".Thanks.
Source Yamachem
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Gold Triangular Seamless Pattern No Background
Source GDJ
Prismatic Groovy Concentric Background
Source GDJ
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
The name Paisley reminds me of an old British servant. That’s just me.
Source Swetha
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
Feel free to download this "Dark Wood" background texture for your web site. The background tiles seamlessly!
Source V. Hartikainen
Prismatic Groovy Concentric Background No Black
Source GDJ
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
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
Looks like an old wall. I guess that’s it then?
Source Viahorizon
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by gingertea
Source Firkin
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso