Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
The name Paisley reminds me of an old British servant. That’s just me.
Source Swetha
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Prismatic Geometric Pattern Background No Black
Source GDJ
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Might not be super subtle, but quite original in its form.
Source Alex Smith
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Dark blue concrete wall with some small dust spots.
Source Atle Mo
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Looks like an old wall. I guess that’s it then?
Source Viahorizon
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin