Not so subtle. These tileable wood patterns are very useful.
Source Elemis
A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A free background tile with a pattern of pink bump dots. This background tile is sweet! Moreover, it's designed for use as website backgrounds.
Source V. Hartikainen
From an image on opengameart.org shared by rubberduck.
Source Firkin
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
Prismatic Basic Pattern 2 No Background
Source GDJ
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
A background pattern with wavy green vertical stripes. This one has green stripes on a white background. Download if you like it.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
A seamless pale yellow paper background with a pattern of animal tracks.
Source V. Hartikainen
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien