The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
8 by 8 pixels, and just what the title says.
Source pixilated
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
You know you love wood patterns, so here’s one more.
Source Richard Tabor
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
A free seamless background with pink spots.
Source V. Hartikainen
Remixed from a drawing in 'Canadian forest industries July-December', 1915
Source Firkin
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Gold Triangular Seamless Pattern No Background
Source GDJ
This background has abstract texture with some similarities to wood.
Source V. Hartikainen
From a drawing in 'Royal Ramsgate', James Simson, 1897.
Source Firkin
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
A seamless texture of a rough concrete surface.
Source V. Hartikainen
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin