Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
A frame using leaves from an image that was uploaded to Pixabay by mayapujiati
Source Firkin
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Lovely pattern with splattered vintage speckles.
Source David Pomfret
A lot of people like the icon patterns, so here’s one for your restaurant blog.
Source Andrijana Jarnjak
Might not be super subtle, but quite original in its form.
Source Alex Smith
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
The name Paisley reminds me of an old British servant. That’s just me.
Source Swetha
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
This one needs to be used in small areas; you can see it repeat.
Source Luca
Classic vertical lines, in all its subtlety.
Source Cody L
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
Source Firkin
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko