The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Might not be super subtle, but quite original in its form.
Source Alex Smith
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
Geometric triangles seem to be quite hot these days.
Source Pixeden
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin