I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
A repeating graphic with ancient pattern. I came up with this name/title at last minute, so you may find that there is very little of ancientness in this pattern after all.
Source V. Hartikainen
Prismatic Floral Background No Black
Source GDJ
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Fix and cc0 to get the tile this is based on.
Source SliverKnight
Prismatic Triangular Background Design Mark II 5
Source GDJ
Alternative colour scheme for the original floral pattern.
Source Firkin
The name Paisley reminds me of an old British servant. That’s just me.
Source Swetha
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
An alternative colour scheme for the original background.
Source Firkin
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
A bit strange this one, but nice at the same time.
Source Diogo Silva
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Seamless Background For Websites. It has a texture similar to cork-board.
Source V. Hartikainen