Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
A seamlessly tileable pink background texture.
Source V. Hartikainen
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Retro Circles Background 8 No Black
Source GDJ
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Prismatic Polyskelion Pattern No Background
Source GDJ
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
Remixed from a JPG that was uploaded to Pixabay by susanlu4esm
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Background Wall, Art Abstract, Star Well & CC0 texture.
Source Ractapopulous
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Otis Ray Redding was an American soul singer-songwriter, record producer, arranger, and talent scout. So you know.
Source Thomas Myrman
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward