To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Psychedelic Geometric Background No Black
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Hexagonalist Pattern No Background
Source GDJ
Pattern produced in Paint.net using the Vibrato plug-in.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
Black brick wall pattern. Brick your site up!
Source Alex Parker
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
From a drawing in 'Danmarks Riges Historie af J. Steenstrup, Kr. Erslev, A. Heise, V. Mollerup, J. A. Fridericia, E. Holm, A. D. Jørgensen', 1897.
Source Firkin
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Geometric Pattern Background 2
Source GDJ
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857
Source Firkin
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae