To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
Retro Circles Background 7 No Black
Source GDJ
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Groovy Concentric Background 3
Source GDJ
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Alternative colour scheme. 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
The original enhanced with some gradients.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin