Retro Circles Background 4 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
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin
Colorful Floral Background 3 No Black
Source GDJ
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Formed from decorative divider 184 in paint.net. Vectorised with Vector Magic.
Source Firkin
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Turn your site into a dragon with this great scale pattern.
Source Alex Parker