Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Did some testing with Repper Pro tonight, and this gray mid-tone pattern came out.
Source Atle Mo
White circles connecting on a light gray background.
Source Mark Collins
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
A frame using leaves from an image that was uploaded to Pixabay by mayapujiati
Source Firkin
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
The rectangular 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 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba