From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
Lovely pattern with splattered vintage speckles.
Source David Pomfret
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
Classic vertical lines, in all its subtlety.
Source Cody L
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
White little knobs, coming in at 10x10px. Sweet!
Source Amos
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Like the name suggests, this background image consists of a pattern of dark bricks. It may be an option for you, if you are looking for something that looks like a brick wall for use as a background on web pages. It's not a masterpiece, but looks pretty nice when is tiled.
Source V. Hartikainen
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin
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
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem