Might not be super subtle, but quite original in its form.
Source Alex Smith
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
A repeating background of thick textured paper. Actually, it turned out to look like something between a paper and fabric.
Source V. Hartikainen
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Sort of reminds me of those old house wallpapers.
Source Tish
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Inspired by a drawing seen in 'City of Liverpool', James Picton, 1883.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Looks as if it's spray painted on the wall. You can be sure that this pattern will seamlessly fill your backgrounds on web pages.
Source V. Hartikainen
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.
Source V. Hartikainen