Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
The image depicts the Japanese Edo pattern called "seigaiha" or "青海波" meaning "blue -sea- wave".I hope it's suitable for the summer season.
Source Yamachem
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Retro Circles Background 5 No Black
Source GDJ
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Prismatic Geometric Pattern Background No Black
Source GDJ
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Black brick wall pattern. Brick your site up!
Source Alex Parker
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-brown.
Source Yamachem
There are many carbon patterns, but this one is tiny.
Source Designova
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers