Embossed lines and squares with subtle highlights.
Source Alex Parker
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
Background formed from the original with an emboss effect
Source GDJ
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
This background pattern contains worn out colorful stripes as a texture.
Source V. Hartikainen
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors