CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Gold Triangular Seamless Pattern No Background
Source GDJ
Prismatic Polka Dots Mark II No Background
Source GDJ
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A lot of people like the icon patterns, so here’s one for your restaurant blog.
Source Andrijana Jarnjak
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Prismatic Groovy Concentric Background 5
Source GDJ
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